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Assembly language | Terminology | Terminology
A macro assembler is an assembler that includes a macroinstruction facility so that (parameterized) assembly language text can be represented by a name, and that name can be used to insert the expanded text into other code.
Open code refers to any assembler input outside of a macro definition.
A cross assembler (see also cross compiler) is an assembler that is run on a computer or operating system (the host system) of a different type from the system on which the resulting code is to run (the target system). Cross-assembling facilitates the development of programs for systems that do not have the resources to support software development, such as an embedded system or a microcontroller. In such a case, the resulting object code must be transferred to the target system, via read-only memory (ROM, EPROM, etc.), a programmer (when the read-only memory is integrated in the device, as in microcontrollers), or a data link using either an exact bit-by-bit copy of the object code or a text-based representation of that code (such as Intel hex or Motorola S-record).
A high-level assembler is a program that provides language abstractions more often associated with high-level languages, such as advanced control structures (IF/THEN/ELSE, DO CASE, etc.) and high-level abstract data types, including structures/records, unions, classes, and sets.
A microassembler is a program that helps prepare a microprogram to control the low level operation of a computer.
A meta-assembler is "a program that accepts the syntactic and semantic description of an assembly language, and generates an assembler for that language", or that accepts an assembler source file along with such a description and assembles the source file in accordance with that description. "Meta-Symbol" assemblers for the SDS 9 Series and SDS Sigma series of computers are meta-assemblers. Sperry Univac also provided a Meta-Assembler for the UNIVAC 1100/2200 series.
inline assembler (or embedded assembler) is assembler code contained within a high-level language program. This is most often used in systems programs which need direct access to the hardware. |
Assembly language | Key concepts | Key concepts |
Assembly language | Assembler | Assembler
An assembler program creates object code by translating combinations of mnemonics and syntax for operations and addressing modes into their numerical equivalents. This representation typically includes an operation code ("opcode") as well as other control bits and data. The assembler also calculates constant expressions and resolves symbolic names for memory locations and other entities. The use of symbolic references is a key feature of assemblers, saving tedious calculations and manual address updates after program modifications. Most assemblers also include macro facilities for performing textual substitution – e.g., to generate common short sequences of instructions as inline, instead of called subroutines.
Some assemblers may also be able to perform some simple types of instruction set-specific optimizations. One concrete example of this may be the ubiquitous x86 assemblers from various vendors. Called jump-sizing, most of them are able to perform jump-instruction replacements (long jumps replaced by short or relative jumps) in any number of passes, on request. Others may even do simple rearrangement or insertion of instructions, such as some assemblers for RISC architectures that can help optimize a sensible instruction scheduling to exploit the CPU pipeline as efficiently as possible.
Assemblers have been available since the 1950s, as the first step above machine language and before high-level programming languages such as Fortran, Algol, COBOL and Lisp. There have also been several classes of translators and semi-automatic code generators with properties similar to both assembly and high-level languages, with Speedcode as perhaps one of the better-known examples.
There may be several assemblers with different syntax for a particular CPU or instruction set architecture. For instance, an instruction to add memory data to a register in a x86-family processor might be add eax,[ebx], in original Intel syntax, whereas this would be written addl (%ebx),%eax in the AT&T syntax used by the GNU Assembler. Despite different appearances, different syntactic forms generally generate the same numeric machine code. A single assembler may also have different modes in order to support variations in syntactic forms as well as their exact semantic interpretations (such as FASM-syntax, TASM-syntax, ideal mode, etc., in the special case of x86 assembly programming). |
Assembly language | {{Anchor | Number of passes
There are two types of assemblers based on how many passes through the source are needed (how many times the assembler reads the source) to produce the object file.
One-pass assemblers process the source code once. For symbols used before they are defined, the assembler will emit "errata" after the eventual definition, telling the linker or the loader to patch the locations where the as yet undefined symbols had been used.
Multi-pass assemblers create a table with all symbols and their values in the first passes, then use the table in later passes to generate code.
In both cases, the assembler must be able to determine the size of each instruction on the initial passes in order to calculate the addresses of subsequent symbols. This means that if the size of an operation referring to an operand defined later depends on the type or distance of the operand, the assembler will make a pessimistic estimate when first encountering the operation, and if necessary, pad it with one or more
"no-operation" instructions in a later pass or the errata. In an assembler with peephole optimization, addresses may be recalculated between passes to allow replacing pessimistic code with code tailored to the exact distance from the target.
The original reason for the use of one-pass assemblers was memory size and speed of assembly – often a second pass would require storing the symbol table in memory (to handle forward references), rewinding and rereading the program source on tape, or rereading a deck of cards or punched paper tape. Later computers with much larger memories (especially disc storage), had the space to perform all necessary processing without such re-reading. The advantage of the multi-pass assembler is that the absence of errata makes the linking process (or the program load if the assembler directly produces executable code) faster.
Example: in the following code snippet, a one-pass assembler would be able to determine the address of the backward reference BKWD when assembling statement S2, but would not be able to determine the address of the forward reference FWD when assembling the branch statement S1; indeed, FWD may be undefined. A two-pass assembler would determine both addresses in pass 1, so they would be known when generating code in pass 2.
B
...
EQU *
...
EQU *
...
B |
Assembly language | High-level assemblers | High-level assemblers
More sophisticated high-level assemblers provide language abstractions such as:
High-level procedure/function declarations and invocations
Advanced control structures (IF/THEN/ELSE, SWITCH)
High-level abstract data types, including structures/records, unions, classes, and sets
Sophisticated macro processing (although available on ordinary assemblers since the late 1950s for, e.g., the IBM 700 series and IBM 7000 series, and since the 1960s for IBM System/360 (S/360), amongst other machines)
Object-oriented programming features such as classes, objects, abstraction, polymorphism, and inheritance
See Language design below for more details. |
Assembly language | Assembly language | Assembly language
A program written in assembly language consists of a series of mnemonic processor instructions and meta-statements (known variously as declarative operations, directives, pseudo-instructions, pseudo-operations and pseudo-ops), comments and data. Assembly language instructions usually consist of an opcode mnemonic followed by an operand, which might be a list of data, arguments or parameters. Some instructions may be "implied", which means the data upon which the instruction operates is implicitly defined by the instruction itself—such an instruction does not take an operand. The resulting statement is translated by an assembler into machine language instructions that can be loaded into memory and executed.
For example, the instruction below tells an x86/IA-32 processor to move an immediate 8-bit value into a register. The binary code for this instruction is 10110 followed by a 3-bit identifier for which register to use. The identifier for the AL register is 000, so the following machine code loads the AL register with the data 01100001.
10110000 01100001
This binary computer code can be made more human-readable by expressing it in hexadecimal as follows.
B0 61
Here, B0 means "Move a copy of the following value into AL", and 61 is a hexadecimal representation of the value 01100001, which is 97 in decimal. Assembly language for the 8086 family provides the mnemonic MOV (an abbreviation of move) for instructions such as this, so the machine code above can be written as follows in assembly language, complete with an explanatory comment if required, after the semicolon. This is much easier to read and to remember.
MOV AL, 61h ; Load AL with 97 decimal (61 hex)
In some assembly languages (including this one) the same mnemonic, such as MOV, may be used for a family of related instructions for loading, copying and moving data, whether these are immediate values, values in registers, or memory locations pointed to by values in registers or by immediate (a.k.a. direct) addresses. Other assemblers may use separate opcode mnemonics such as L for "move memory to register", ST for "move register to memory", LR for "move register to register", MVI for "move immediate operand to memory", etc.
If the same mnemonic is used for different instructions, that means that the mnemonic corresponds to several different binary instruction codes, excluding data (e.g. the 61h in this example), depending on the operands that follow the mnemonic. For example, for the x86/IA-32 CPUs, the Intel assembly language syntax MOV AL, AH represents an instruction that moves the contents of register AH into register AL. The hexadecimal form of this instruction is:
88 E0
The first byte, 88h, identifies a move between a byte-sized register and either another register or memory, and the second byte, E0h, is encoded (with three bit-fields) to specify that both operands are registers, the source is AH, and the destination is AL.
In a case like this where the same mnemonic can represent more than one binary instruction, the assembler determines which instruction to generate by examining the operands. In the first example, the operand 61h is a valid hexadecimal numeric constant and is not a valid register name, so only the B0 instruction can be applicable. In the second example, the operand AH is a valid register name and not a valid numeric constant (hexadecimal, decimal, octal, or binary), so only the 88 instruction can be applicable.
Assembly languages are always designed so that this sort of lack of ambiguity is universally enforced by their syntax. For example, in the Intel x86 assembly language, a hexadecimal constant must start with a numeral digit, so that the hexadecimal number 'A' (equal to decimal ten) would be written as 0Ah or 0AH, not AH, specifically so that it cannot appear to be the name of register AH. (The same rule also prevents ambiguity with the names of registers BH, CH, and DH, as well as with any user-defined symbol that ends with the letter H and otherwise contains only characters that are hexadecimal digits, such as the word "BEACH".)
Returning to the original example, while the x86 opcode 10110000 (B0) copies an 8-bit value into the AL register, 10110001 (B1) moves it into CL and 10110010 (B2) does so into DL. Assembly language examples for these follow.
MOV AL, 1h ; Load AL with immediate value 1
MOV CL, 2h ; Load CL with immediate value 2
MOV DL, 3h ; Load DL with immediate value 3
The syntax of MOV can also be more complex as the following examples show.
MOV EAX, [EBX] ; Move the 4 bytes in memory at the address contained in EBX into EAX
MOV [ESI+EAX], CL ; Move the contents of CL into the byte at address ESI+EAX
MOV DS, DX ; Move the contents of DX into segment register DS
In each case, the MOV mnemonic is translated directly into one of the opcodes 88-8C, 8E, A0-A3, B0-BF, C6 or C7 by an assembler, and the programmer normally does not have to know or remember which.
Transforming assembly language into machine code is the job of an assembler, and the reverse can at least partially be achieved by a disassembler. Unlike high-level languages, there is a one-to-one correspondence between many simple assembly statements and machine language instructions. However, in some cases, an assembler may provide pseudoinstructions (essentially macros) which expand into several machine language instructions to provide commonly needed functionality. For example, for a machine that lacks a "branch if greater or equal" instruction, an assembler may provide a pseudoinstruction that expands to the machine's "set if less than" and "branch if zero (on the result of the set instruction)". Most full-featured assemblers also provide a rich macro language (discussed below) which is used by vendors and programmers to generate more complex code and data sequences. Since the information about pseudoinstructions and macros defined in the assembler environment is not present in the object program, a disassembler cannot reconstruct the macro and pseudoinstruction invocations but can only disassemble the actual machine instructions that the assembler generated from those abstract assembly-language entities. Likewise, since comments in the assembly language source file are ignored by the assembler and have no effect on the object code it generates, a disassembler is always completely unable to recover source comments.
Each computer architecture has its own machine language. Computers differ in the number and type of operations they support, in the different sizes and numbers of registers, and in the representations of data in storage. While most general-purpose computers are able to carry out essentially the same functionality, the ways they do so differ; the corresponding assembly languages reflect these differences.
Multiple sets of mnemonics or assembly-language syntax may exist for a single instruction set, typically instantiated in different assembler programs. In these cases, the most popular one is usually that supplied by the CPU manufacturer and used in its documentation.
Two examples of CPUs that have two different sets of mnemonics are the Intel 8080 family and the Intel 8086/8088. Because Intel claimed copyright on its assembly language mnemonics (on each page of their documentation published in the 1970s and early 1980s, at least), some companies that independently produced CPUs compatible with Intel instruction sets invented their own mnemonics. The Zilog Z80 CPU, an enhancement of the Intel 8080A, supports all the 8080A instructions plus many more; Zilog invented an entirely new assembly language, not only for the new instructions but also for all of the 8080A instructions. For example, where Intel uses the mnemonics MOV, MVI, LDA, STA, LXI, LDAX, STAX, LHLD, and SHLD for various data transfer instructions, the Z80 assembly language uses the mnemonic LD for all of them. A similar case is the NEC V20 and V30 CPUs, enhanced copies of the Intel 8086 and 8088, respectively. Like Zilog with the Z80, NEC invented new mnemonics for all of the 8086 and 8088 instructions, to avoid accusations of infringement of Intel's copyright. (It is questionable whether such copyrights can be valid, and later CPU companies such as AMD and Cyrix republished Intel's x86/IA-32 instruction mnemonics exactly with neither permission nor legal penalty.) It is doubtful whether in practice many people who programmed the V20 and V30 actually wrote in NEC's assembly language rather than Intel's; since any two assembly languages for the same instruction set architecture are isomorphic (somewhat like English and Pig Latin), there is no requirement to use a manufacturer's own published assembly language with that manufacturer's products. |
Assembly language | "Hello, world!" on x86 Linux | "Hello, world!" on x86 Linux
In 32-bit assembly language for Linux on an x86 processor, "Hello, world!" can be printed like this.
section .text
global _start
_start:
mov edx,len ; length of string, third argument to write()
mov ecx,msg ; address of string, second argument to write()
mov ebx,1 ; file descriptor (standard output), first argument to write()
mov eax,4 ; system call number for write()
int 0x80 ; system call trap
mov ebx,0 ; exit code, first argument to exit()
mov eax,1 ; system call number for exit()
int 0x80 ; system call trap
section .data
msg db 'Hello, world!', 0xa
len equ $ - msg |
Assembly language | Language design | Language design |
Assembly language | Basic elements | Basic elements
There is a large degree of diversity in the way the authors of assemblers categorize statements and in the nomenclature that they use. In particular, some describe anything other than a machine mnemonic or extended mnemonic as a pseudo-operation (pseudo-op). A typical assembly language consists of 3 types of instruction statements that are used to define program operations:
Opcode mnemonics
Data definitions
Assembly directives |
Assembly language | {{anchor | Opcode mnemonics and extended mnemonics
Instructions (statements) in assembly language are generally very simple, unlike those in high-level languages. Generally, a mnemonic is a symbolic name for a single executable machine language instruction (an opcode), and there is at least one opcode mnemonic defined for each machine language instruction. Each instruction typically consists of an operation or opcode plus zero or more operands. Most instructions refer to a single value or a pair of values. Operands can be immediate (value coded in the instruction itself), registers specified in the instruction or implied, or the addresses of data located elsewhere in storage. This is determined by the underlying processor architecture: the assembler merely reflects how this architecture works. Extended mnemonics are often used to specify a combination of an opcode with a specific operand, e.g., the System/360 assemblers use as an extended mnemonic for with a mask of 15 and ("NO OPeration" – do nothing for one step) for with a mask of 0.
Extended mnemonics are often used to support specialized uses of instructions, often for purposes not obvious from the instruction name. For example, many CPU's do not have an explicit NOP instruction, but do have instructions that can be used for the purpose. In 8086 CPUs the instruction is used for , with being a pseudo-opcode to encode the instruction . Some disassemblers recognize this and will decode the instruction as . Similarly, IBM assemblers for System/360 and System/370 use the extended mnemonics and for and with zero masks. For the SPARC architecture, these are known as synthetic instructions.
Some assemblers also support simple built-in macro-instructions that generate two or more machine instructions. For instance, with some Z80 assemblers the instruction is recognized to generate followed by . These are sometimes known as pseudo-opcodes.
Mnemonics are arbitrary symbols; in 1985 the IEEE published Standard 694 for a uniform set of mnemonics to be used by all assemblers. The standard has since been withdrawn. |
Assembly language | Data directives | Data directives
There are instructions used to define data elements to hold data and variables. They define the type of data, the length and the alignment of data. These instructions can also define whether the data is available to outside programs (programs assembled separately) or only to the program in which the data section is defined. Some assemblers classify these as pseudo-ops. |
Assembly language | Assembly directives | Assembly directives
Assembly directives, also called pseudo-opcodes, pseudo-operations or pseudo-ops, are commands given to an assembler "directing it to perform operations other than assembling instructions". Directives affect how the assembler operates and "may affect the object code, the symbol table, the listing file, and the values of internal assembler parameters". Sometimes the term pseudo-opcode is reserved for directives that generate object code, such as those that generate data.
The names of pseudo-ops often start with a dot to distinguish them from machine instructions. Pseudo-ops can make the assembly of the program dependent on parameters input by a programmer, so that one program can be assembled in different ways, perhaps for different applications. Or, a pseudo-op can be used to manipulate presentation of a program to make it easier to read and maintain. Another common use of pseudo-ops is to reserve storage areas for run-time data and optionally initialize their contents to known values.
Symbolic assemblers let programmers associate arbitrary names (labels or symbols) with memory locations and various constants. Usually, every constant and variable is given a name so instructions can reference those locations by name, thus promoting self-documenting code. In executable code, the name of each subroutine is associated with its entry point, so any calls to a subroutine can use its name. Inside subroutines, GOTO destinations are given labels. Some assemblers support local symbols which are often lexically distinct from normal symbols (e.g., the use of "10$" as a GOTO destination).
Some assemblers, such as NASM, provide flexible symbol management, letting programmers manage different namespaces, automatically calculate offsets within data structures, and assign labels that refer to literal values or the result of simple computations performed by the assembler. Labels can also be used to initialize constants and variables with relocatable addresses.
Assembly languages, like most other computer languages, allow comments to be added to program source code that will be ignored during assembly. Judicious commenting is essential in assembly language programs, as the meaning and purpose of a sequence of binary machine instructions can be difficult to determine. The "raw" (uncommented) assembly language generated by compilers or disassemblers is quite difficult to read when changes must be made. |
Assembly language | Macros | Macros
Many assemblers support predefined macros, and others support programmer-defined (and repeatedly re-definable) macros involving sequences of text lines in which variables and constants are embedded. The macro definition is most commonly a mixture of assembler statements, e.g., directives, symbolic machine instructions, and templates for assembler statements. This sequence of text lines may include opcodes or directives. Once a macro has been defined its name may be used in place of a mnemonic. When the assembler processes such a statement, it replaces the statement with the text lines associated with that macro, then processes them as if they existed in the source code file (including, in some assemblers, expansion of any macros existing in the replacement text). Macros in this sense date to IBM autocoders of the 1950s.
Macro assemblers typically have directives to, e.g., define macros, define variables, set variables to the result of an arithmetic, logical or string expression, iterate, conditionally generate code. Some of those directives may be restricted to use within a macro definition, e.g., MEXIT in HLASM, while others may be permitted within open code (outside macro definitions), e.g., AIF and COPY in HLASM.
In assembly language, the term "macro" represents a more comprehensive concept than it does in some other contexts, such as the pre-processor in the C programming language, where its #define directive typically is used to create short single line macros. Assembler macro instructions, like macros in PL/I and some other languages, can be lengthy "programs" by themselves, executed by interpretation by the assembler during assembly.
Since macros can have 'short' names but expand to several or indeed many lines of code, they can be used to make assembly language programs appear to be far shorter, requiring fewer lines of source code, as with higher level languages. They can also be used to add higher levels of structure to assembly programs, optionally introduce embedded debugging code via parameters and other similar features.
Macro assemblers often allow macros to take parameters. Some assemblers include quite sophisticated macro languages, incorporating such high-level language elements as optional parameters, symbolic variables, conditionals, string manipulation, and arithmetic operations, all usable during the execution of a given macro, and allowing macros to save context or exchange information. Thus a macro might generate numerous assembly language instructions or data definitions, based on the macro arguments. This could be used to generate record-style data structures or "unrolled" loops, for example, or could generate entire algorithms based on complex parameters. For instance, a "sort" macro could accept the specification of a complex sort key and generate code crafted for that specific key, not needing the run-time tests that would be required for a general procedure interpreting the specification. An organization using assembly language that has been heavily extended using such a macro suite can be considered to be working in a higher-level language since such programmers are not working with a computer's lowest-level conceptual elements. Underlining this point, macros were used to implement an early virtual machine in SNOBOL4 (1967), which was written in the SNOBOL Implementation Language (SIL), an assembly language for a virtual machine. The target machine would translate this to its native code using a macro assembler. This allowed a high degree of portability for the time.
Macros were used to customize large scale software systems for specific customers in the mainframe era and were also used by customer personnel to satisfy their employers' needs by making specific versions of manufacturer operating systems. This was done, for example, by systems programmers working with IBM's Conversational Monitor System / Virtual Machine (VM/CMS) and with IBM's "real time transaction processing" add-ons, Customer Information Control System CICS, and ACP/TPF, the airline/financial system that began in the 1970s and still runs many large computer reservation systems (CRS) and credit card systems today.
It is also possible to use solely the macro processing abilities of an assembler to generate code written in completely different languages, for example, to generate a version of a program in COBOL using a pure macro assembler program containing lines of COBOL code inside assembly time operators instructing the assembler to generate arbitrary code. IBM OS/360 uses macros to perform system generation. The user specifies options by coding a series of assembler macros. Assembling these macros generates a job stream to build the system, including job control language and utility control statements.
This is because, as was realized in the 1960s, the concept of "macro processing" is independent of the concept of "assembly", the former being in modern terms more word processing, text processing, than generating object code. The concept of macro processing appeared, and appears, in the C programming language, which supports "preprocessor instructions" to set variables, and make conditional tests on their values. Unlike certain previous macro processors inside assemblers, the C preprocessor is not Turing-complete because it lacks the ability to either loop or "go to", the latter allowing programs to loop.
Despite the power of macro processing, it fell into disuse in many high level languages (major exceptions being C, C++ and PL/I) while remaining a perennial for assemblers.
Macro parameter substitution is strictly by name: at macro processing time, the value of a parameter is textually substituted for its name. The most famous class of bugs resulting was the use of a parameter that itself was an expression and not a simple name when the macro writer expected a name. In the macro:
foo: macro a
load a*b
the intention was that the caller would provide the name of a variable, and the "global" variable or constant b would be used to multiply "a". If foo is called with the parameter a-c, the macro expansion of load a-c*b occurs. To avoid any possible ambiguity, users of macro processors can parenthesize formal parameters inside macro definitions, or callers can parenthesize the input parameters. |
Assembly language | Support for structured programming | Support for structured programming
Packages of macros have been written providing structured programming elements to encode execution flow. The earliest example of this approach was in the Concept-14 macro set, originally proposed by Harlan Mills (March 1970), and implemented by Marvin Kessler at IBM's Federal Systems Division, which provided IF/ELSE/ENDIF and similar control flow blocks for OS/360 assembler programs. This was a way to reduce or eliminate the use of GOTO operations in assembly code, one of the main factors causing spaghetti code in assembly language. This approach was widely accepted in the early 1980s (the latter days of large-scale assembly language use). IBM's High Level Assembler Toolkit includes such a macro package.
Another design was A-Natural, a "stream-oriented" assembler for 8080/Z80 processors from Whitesmiths Ltd. (developers of the Unix-like Idris operating system, and what was reported to be the first commercial C compiler). The language was classified as an assembler because it worked with raw machine elements such as opcodes, registers, and memory references; but it incorporated an expression syntax to indicate execution order. Parentheses and other special symbols, along with block-oriented structured programming constructs, controlled the sequence of the generated instructions. A-natural was built as the object language of a C compiler, rather than for hand-coding, but its logical syntax won some fans.
There has been little apparent demand for more sophisticated assemblers since the decline of large-scale assembly language development. In spite of that, they are still being developed and applied in cases where resource constraints or peculiarities in the target system's architecture prevent the effective use of higher-level languages.
Assemblers with a strong macro engine allow structured programming via macros, such as the switch macro provided with the Masm32 package (this code is a complete program):
include \masm32\include\masm32rt.inc ; use the Masm32 library
.code
demomain:
REPEAT 20
switch rv(nrandom, 9) ; generate a number between 0 and 8
mov ecx, 7
case 0
print "case 0"
case ecx ; in contrast to most other programming languages,
print "case 7" ; the Masm32 switch allows "variable cases"
case 1 .. 3
.if eax==1
print "case 1"
.elseif eax==2
print "case 2"
.else
print "cases 1 to 3: other"
.endif
case 4, 6, 8
print "cases 4, 6 or 8"
default
mov ebx, 19 ; print 20 stars
.Repeat
print "*"
dec ebx
.Until Sign? ; loop until the sign flag is set
endsw
print chr$(13, 10)
ENDM
exit
end demomain |
Assembly language | Use of assembly language | Use of assembly language
When the stored-program computer was introduced, programs were written in machine code, and loaded into the computer from punched paper tape or toggled directly into memory from console switches. Kathleen Booth "is credited with inventing assembly language" based on theoretical work she began in 1947, while working on the ARC2 at Birkbeck, University of London, following consultation by Andrew Booth (later her husband) with mathematician John von Neumann and physicist Herman Goldstine at the Institute for Advanced Study.
In late 1948, the Electronic Delay Storage Automatic Calculator (EDSAC) had an assembler (named "initial orders") integrated into its bootstrap program. It used one-letter mnemonics developed by David Wheeler, who is credited by the IEEE Computer Society as the creator of the first "assembler". Reports on the EDSAC introduced the term "assembly" for the process of combining fields into an instruction word. SOAP (Symbolic Optimal Assembly Program) was an assembly language for the IBM 650 computer written by Stan Poley in 1955.
Assembly languages eliminated much of the error-prone, tedious, and time-consuming first-generation programming needed with the earliest computers, freeing programmers from tedium such as remembering numeric codes and calculating addresses. They were once widely used for all sorts of programming. By the late 1950s their use had largely been supplanted by higher-level languages in the search for improved programming productivity. Today, assembly language is still used for direct hardware manipulation, access to specialized processor instructions, or to address critical performance issues. Typical uses are device drivers, low-level embedded systems, and real-time systems (see ).
Numerous programs were written entirely in assembly language. The Burroughs MCP (1961) was the first computer for which an operating system was not developed entirely in assembly language; it was written in Executive Systems Problem Oriented Language (ESPOL), an Algol dialect. Many commercial applications were written in assembly language as well, including a large amount of the IBM mainframe software developed by large corporations. COBOL, FORTRAN and some PL/I eventually displaced assembly language, although a number of large organizations retained assembly-language application infrastructures well into the 1990s.
Assembly language was the primary development language for 8-bit home computers such as the Apple II, Atari 8-bit computers, ZX Spectrum, and Commodore 64. Interpreted BASIC on these systems did not offer maximum execution speed and full use of facilities to take full advantage of the available hardware. Assembly language was the default choice for programming 8-bit consoles such as the Atari 2600 and Nintendo Entertainment System.
Key software for IBM PC compatibles such as MS-DOS, Turbo Pascal, and the Lotus 1-2-3 spreadsheet was written in assembly language. As computer speed grew exponentially, assembly language became a tool for speeding up parts of programs, such as the rendering of Doom, rather than a dominant development language. In the 1990s, assembly language was used to maximise performance from systems such as the Sega Saturn, and as the primary language for arcade hardware using the TMS34010 integrated CPU/GPU such as Mortal Kombat and NBA Jam. |
Assembly language | Current usage | Current usage
There has been debate over the usefulness and performance of assembly language relative to high-level languages.
Although assembly language has specific niche uses where it is important (see below), there are other tools for optimization.
, the TIOBE index of programming language popularity ranks assembly language at 11, ahead of Visual Basic, for example. Assembler can be used to optimize for speed or optimize for size. In the case of speed optimization, modern optimizing compilers are claimed to render high-level languages into code that can run as fast as hand-written assembly, despite some counter-examples. The complexity of modern processors and memory sub-systems makes effective optimization increasingly difficult for compilers and assembly programmers alike. Increasing processor performance has meant that most CPUs sit idle most of the time, with delays caused by predictable bottlenecks such as cache misses, I/O operations and paging, making raw code execution speed a non-issue for many programmers.
There are still certain computer programming domains in which the use of assembly programming is more common:
Writing code for systems with that have limited high-level language options such as the Atari 2600, Commodore 64, and graphing calculators. Programs for these computers of the 1970s and 1980s are often written in the context of demoscene or retrogaming subcultures.
Code that must interact directly with the hardware, for example in device drivers and interrupt handlers.
In an embedded processor or DSP, high-repetition interrupts require the shortest number of cycles per interrupt, such as an interrupt that occurs 1000 or 10000 times a second.
Programs that need to use processor-specific instructions not implemented in a compiler. A common example is the bitwise rotation instruction at the core of many encryption algorithms, as well as querying the parity of a byte or the 4-bit carry of an addition.
Stand-alone executables that are required to execute without recourse to the run-time components or libraries associated with a high-level language, such as the firmware for telephones, automobile fuel and ignition systems, air-conditioning control systems,and security systems.
Programs with performance-sensitive inner loops, where assembly language provides optimization opportunities that are difficult to achieve in a high-level language. For example, linear algebra with BLAS or discrete cosine transformation (e.g. SIMD assembly version from x264).
Programs that create vectorized functions for programs in higher-level languages such as C. In the higher-level language this is sometimes aided by compiler intrinsic functions which map directly to SIMD mnemonics, but nevertheless result in a one-to-one assembly conversion specific for the given vector processor.
Real-time programs such as simulations, flight navigation systems, and medical equipment. For example, in a fly-by-wire system, telemetry must be interpreted and acted upon within strict time constraints. Such systems must eliminate sources of unpredictable delays, which may be created by interpreted languages, automatic garbage collection, paging operations, or preemptive multitasking. Choosing assembly or lower-level languages for such systems gives programmers greater visibility and control over processing details.
Cryptographic algorithms that must always take strictly the same time to execute, preventing timing attacks.
Video encoders and decoders such as rav1e (an encoder for AV1) and dav1d (the reference decoder for AV1) contain assembly to leverage AVX2 and ARM Neon instructions when available.
Modify and extend legacy code written for IBM mainframe computers.
Situations where complete control over the environment is required, in extremely high-security situations where nothing can be taken for granted.
Computer viruses, bootloaders, certain device drivers, or other items very close to the hardware or low-level operating system.
Instruction set simulators for monitoring, tracing and debugging where additional overhead is kept to a minimum.
Situations where no high-level language exists, on a new or specialized processor for which no cross compiler is available.
Reverse engineering and modifying program files such as:
existing binaries that may or may not have originally been written in a high-level language, for example when trying to recreate programs for which source code is not available or has been lost, or cracking copy protection of proprietary software.
Video games (also termed ROM hacking), which is possible via several methods. The most widely employed method is altering program code at the assembly language level.
Assembly language is still taught in most computer science and electronic engineering programs. Although few programmers today regularly work with assembly language as a tool, the underlying concepts remain important. Such fundamental topics as binary arithmetic, memory allocation, stack processing, character set encoding, interrupt processing, and compiler design would be hard to study in detail without a grasp of how a computer operates at the hardware level. Since a computer's behaviour is fundamentally defined by its instruction set, the logical way to learn such concepts is to study an assembly language. Most modern computers have similar instruction sets. Therefore, studying a single assembly language is sufficient to learn the basic concepts, recognize situations where the use of assembly language might be appropriate, and to see how efficient executable code can be created from high-level languages. |
Assembly language | Typical applications | Typical applications
Assembly language is typically used in a system's boot code, the low-level code that initializes and tests the system hardware prior to booting the operating system and is often stored in ROM. (BIOS on IBM-compatible PC systems and CP/M is an example.)
Assembly language is often used for low-level code, for instance for operating system kernels, which cannot rely on the availability of pre-existing system calls and must indeed implement them for the particular processor architecture on which the system will be running.
Some compilers translate high-level languages into assembly first before fully compiling, allowing the assembly code to be viewed for debugging and optimization purposes.
Some compilers for relatively low-level languages, such as Pascal or C, allow the programmer to embed assembly language directly in the source code (so called inline assembly). Programs using such facilities can then construct abstractions using different assembly language on each hardware platform. The system's portable code can then use these processor-specific components through a uniform interface.
Assembly language is useful in reverse engineering. Many programs are distributed only in machine code form which is straightforward to translate into assembly language by a disassembler, but more difficult to translate into a higher-level language through a decompiler. Tools such as the Interactive Disassembler make extensive use of disassembly for such a purpose. This technique is used by hackers to crack commercial software, and competitors to produce software with similar results from competing companies.
Assembly language is used to enhance speed of execution, especially in early personal computers with limited processing power and RAM.
Assemblers can be used to generate blocks of data, with no high-level language overhead, from formatted and commented source code, to be used by other code. |
Assembly language | See also | See also
Compiler
Comparison of assemblers
Disassembler
Hexadecimal
Instruction set architecture
Little man computer – an educational computer model with a base-10 assembly language
Nibble
Typed assembly language |
Assembly language | Notes | Notes |
Assembly language | References | References |
Assembly language | Further reading | Further reading
(2+xiv+270+6 pages)
("An online book full of helpful ASM info, tutorials and code examples" by the ASM Community, archived at the internet archive.) |
Assembly language | External links | External links
Assembly Language and Learning Assembly Language pages on WikiWikiWeb
Assembly Language Programming Examples
*Assembly language
Category:Computer-related introductions in 1949
Category:Embedded systems
Category:Low-level programming languages
Category:Programming language implementation
Category:Programming languages created in 1949 |
Assembly language | Table of Content | Short description, Assembly language syntax, Terminology, Key concepts, Assembler, {{Anchor, High-level assemblers, Assembly language, "Hello, world!" on x86 Linux, Language design, Basic elements, {{anchor, Data directives, Assembly directives, Macros, Support for structured programming, Use of assembly language, Current usage, Typical applications, See also, Notes, References, Further reading, External links |
Ambrosia | Short description | thumb|upright=1.2|The Food of the Gods on Olympus (1530), majolica dish attributed to Nicola da Urbino
In the ancient Greek myths, ambrosia (, ) is the food or drink of the Greek gods, and is often depicted as conferring longevity or immortality upon whoever consumed it. It was brought to the gods in Olympus by doves and served either by Hebe or by Ganymede at the heavenly feast.Homer, Odyssey xii.62
Ancient art sometimes depicted ambrosia as distributed by the nymph named Ambrosia, a nurse of Dionysus.Ruth E. Leader-Newby, Silver and Society in Late Antiquity: Functions and Meanings of Silver Plate in the Fourth to Seventh Centuries (Ashgate, 2004), p. 133; Christine Kondoleon, Domestic and Divine: Roman Mosaics in the House of Dionysos (Cornell University Press, 1995), p. 246; Katherine M. D. Dunbabin, Mosaics of the Greek and Roman World (Cambridge University Press, 1999), pp. 136, 142, 276–277. |
Ambrosia | Definition | Definition
Ambrosia is very closely related to the gods' other form of sustenance, nectar. The two terms may not have originally been distinguished;"Attempts to draw any significant distinctions between the functions of nectar and ambrosia have failed." Clay, p. 114. though in Homer's poems nectar is usually the drink and ambrosia the food of the gods; it was with ambrosia that Hera "cleansed all defilement from her lovely flesh",Homer, Iliad xiv.170 and with ambrosia Athena prepared Penelope in her sleep,Homer, Odyssey xviii.188ff so that when she appeared for the final time before her suitors, the effects of years had been stripped away, and they were inflamed with passion at the sight of her. On the other hand, in Alcman,Alcman, fragment 42 nectar is the food, and in SapphoSappho, fragment 141 LP and Anaxandrides, ambrosia is the drink.When Anaxandrides says "I eat nectar and drink ambrosia", though, Wright, p. 5, suggested he was using comic inversion. A character in Aristophanes' Knights says, "I dreamed the goddess poured ambrosia over your head—out of a ladle." Both descriptions could be correct, as ambrosia could be a liquid considered a food (such as honey).
The consumption of ambrosia was typically reserved for divine beings. Upon his assumption into immortality on Olympus, Heracles is given ambrosia by Athena, while the hero Tydeus is denied the same thing when the goddess discovers him eating human brains. In one version of the myth of Tantalus, part of Tantalus' crime is that after tasting ambrosia himself, he attempts to steal some to give to other mortals.Pindar, Olympian Odes 1. 50. ff. Those who consume ambrosia typically have ichor, not blood, in their veins.Homer, Iliad v. 340, 416.
Both nectar and ambrosia are fragrant, and may be used as perfume: in the Odyssey Menelaus and his men are disguised as seals in untanned seal skins, "and the deadly smell of the seal skins vexed us sore; but the goddess saved us; she brought ambrosia and put it under our nostrils."Homer, Odyssey iv.444–446 Homer speaks of ambrosial raiment, ambrosial locks of hair, even the gods' ambrosial sandals.
Among later writers, ambrosia has been so often used with generic meanings of "delightful liquid" that such late writers as Athenaeus, Paulus and Dioscurides employ it as a technical term in contexts of cookery,In Athenaeus, a sauce of oil, water and fruit juice. medicine,In Paulus, a medicinal draught. and botany.Dioscurides remarked its Latin name was , "sea-dew", or rosemary; these uses were noted by Wright 1917:6. Pliny used the term in connection with different plants, as did early herbalists."Ambrosia" in Chambers's Encyclopædia. London: George Newnes, 1961, Vol. 1, p. 315.
Additionally, some modern ethnomycologists, such as Danny Staples, identify ambrosia with the hallucinogenic mushroom Amanita muscaria: "it was the food of the gods, their ambrosia, and nectar was the pressed sap of its juices", Staples asserts.Carl A. P. Ruck and Danny Staples, The World of Classical Myth 1994:26.
W. H. Roscher thinks that both nectar and ambrosia were kinds of honey, in which case their power of conferring immortality would be due to the supposed healing and cleansing powers of honey, and because fermented honey (mead) preceded wine as an entheogen in the Aegean world; on some Minoan seals, goddesses were represented with bee faces (compare Merope and Melissa). |
Ambrosia | Etymology | Etymology
The concept of an immortality drink is attested in at least two ancient Indo-European languages: Greek and Sanskrit. The Greek ἀμβροσία (ambrosia) is semantically linked to the Sanskrit (amṛta) as both words denote a drink or food that gods use to achieve immortality. The two words appear to be derived from the same Indo-European form *ṇ-mṛ-tós, "un-dying" Mallory also connects to this root an Avestan word, and notes that the root is "dialectally restricted to the IE southeast". (n-: negative prefix from which the prefix a- in both Greek and Sanskrit are derived; mṛ: zero grade of *mer-, "to die"; and -to-: adjectival suffix). A semantically similar etymology exists for nectar, the beverage of the gods (Greek: νέκταρ néktar) presumed to be a compound of the PIE roots *nek-, "death", and -*tar, "overcoming". |
Ambrosia | Other examples in mythology | Other examples in mythology
thumb|Thetis anoints Achilles with ambrosia, by Johann Balthasar Probst (1673–1748)
In one version of the story of the birth of Achilles, Thetis anoints the infant with ambrosia and passes the child through the fire to make him immortal but Peleus, appalled, stops her, leaving only his heel unimmortalised (Argonautica 4.869–879).
In the Iliad xvi, Apollo washes the black blood from the corpse of Sarpedon and anoints it with ambrosia, readying it for its dreamlike return to Sarpedon's native Lycia. Similarly, Thetis anoints the corpse of Patroclus in order to preserve it. Ambrosia and nectar are depicted as unguents (xiv. 170; xix. 38).
In the Odyssey, Calypso is described as having "spread a table with ambrosia and set it by Hermes, and mixed the rosy-red nectar." It is ambiguous whether he means the ambrosia itself is rosy-red, or if he is describing a rosy-red nectar Hermes drinks along with the ambrosia. Later, Circe mentions to OdysseusOdyssey xii.62: "the trembling doves that carry ambrosia to Father Zeus." that a flock of doves are the bringers of ambrosia to Olympus.
In the Odyssey (ix.345–359), Polyphemus likens the wine given to him by Odysseus to ambrosia and nectar.
One of the impieties of Tantalus, according to Pindar, was that he offered to his guests the ambrosia of the Deathless Ones, a theft akin to that of Prometheus, Karl Kerenyi noted (in Heroes of the Greeks).
In the Homeric hymn to Aphrodite, the goddess uses "ambrosial bridal oil that she had ready perfumed."
In the story of Eros and Psyche as told by Apuleius, Psyche is given ambrosia upon her completion of the quests set by Aphrodite and her acceptance on Olympus. After she partakes, she and Eros are wed as gods.
In the Aeneid, Aeneas encounters his mother in an alternate, or illusory form. When she became her godly form "Her hair's ambrosia breathed a holy fragrance." |
Ambrosia | Ambrosia (nymph) | Ambrosia (nymph)
thumb|Lycurgus attacking the nymph Ambrosia (mosaic from Herculaneum, 45–79 AD)
Lycurgus, king of Thrace, forbade the cult of Dionysus, whom he drove from Thrace, and attacked the gods' entourage when they celebrated the god. Among them was Ambrosia, who turned herself into a grapevine to hide from his wrath. Dionysus, enraged by the king's actions, drove him mad. In his fit of insanity he killed his son, whom he mistook for a stock of ivy, and then himself. |
Ambrosia | See also | See also
Amrita
Elixir of life, a potion sought by alchemy to produce immortality
Ichor, blood of the Greek gods, related to ambrosia
Iðunn's apples in Norse mythology
Manna, food given by God to the Israelites
Peaches of Immortality in Chinese mythology
Pill of Immortality
Silphium
Soma and Haoma, a ritual drink of importance among the early Vedic peoples and Indo-Iranians. |
Ambrosia | References | References |
Ambrosia | Sources | Sources
Clay, Jenny Strauss, "Immortal and ageless forever", The Classical Journal 77.2 (December 1981:pp. 112–117).
Ruck, Carl A.P. and Danny Staples, The World of Classical Myth 1994, p. 26 et seq.
Wright, F. A., "The Food of the Gods", The Classical Review 31.1, (February 1917:4–6). |
Ambrosia | External links | External links
Category:Ancient Greek cuisine
Category:Mount Olympus
Category:Mythological medicines and drugs
Category:Mythological food and drink
Category:Immortality
Category:Thetis
Category:Achilles
Category:Metamorphoses |
Ambrosia | Table of Content | Short description, Definition, Etymology, Other examples in mythology, Ambrosia (nymph), See also, References, Sources, External links |
Ambrose | Short description | Ambrose of Milan (; 4 April 397), venerated as Saint Ambrose, was a theologian and statesman who served as Bishop of Milan from 374 to 397. He expressed himself prominently as a public figure, fiercely promoting Roman Christianity against Arianism and paganism. He left a substantial collection of writings, of which the best known include the ethical commentary De officiis ministrorum (377–391), and the exegetical (386–390). His preaching, his actions and his literary works, in addition to his innovative musical hymnography, made him one of the most influential ecclesiastical figures of the 4th century.
Ambrose was serving as the Roman governor of Aemilia-Liguria in Milan when he was unexpectedly made Bishop of Milan in 374 by popular acclamation. As bishop, he took a firm position against Arianism and attempted to mediate the conflict between the emperors Theodosius I and Magnus Maximus. Tradition credits Ambrose with developing an antiphonal chant, known as Ambrosian chant, and for composing the "Te Deum" hymn, though modern scholars now reject both of these attributions. Ambrose's authorship on at least four hymns, including the well-known "Veni redemptor gentium", is secure; they form the core of the Ambrosian hymns, which includes others that are sometimes attributed to him. He also had a notable influence on Augustine of Hippo (354–430), whom he helped convert to Christianity.
Western Christianity identified Ambrose, along with Augustine, Jerome and pope Gregory the Great, as one of the four Great Latin Church Fathers, declared Doctors of the Church in 1298. He is considered a saint by the Catholic Church, Eastern Orthodox Church, Anglican Communion, and various Lutheran denominations, and venerated as the patron saint of Milan and beekeepers. |
Ambrose | Background and career | Background and career
Legends about Ambrose had spread through the empire long before his biography was written, making it difficult for modern historians to understand his true character and fairly place his behaviour within the context of antiquity. Most agree he was the personification of his era. This would make Ambrose a genuinely spiritual man who spoke up and defended his faith against opponents, an aristocrat who retained many of the attitudes and practices of a Roman governor, and also an ascetic who served the poor. |
Ambrose | Early life | Early life
thumb|upright=1.3|Relief by depicting Ambrose as a child while bees swarm his crib. His father is on the right of the image while the sky has three clouds "sending forth flames". The relief is from the Altar of Sant'Ambrogio in the Basilica of Sant'Ambrogio.
Ambrose was born into a Roman Christian family, of Greek descent, in the year 339. Ambrose himself wrote that he was 53 years old in his letter number 49, which has been dated to 392. He began life in Augusta Treverorum (modern Trier) the capital of the Roman province of Gallia Belgica in what was then northeastern Gaul and is now in the Rhineland-Palatinate in Germany. Scholars disagree on who exactly his father was. His father is sometimes identified with Aurelius Ambrosius, a praetorian prefect of Gaul; but some scholars identify his father as an official named Uranius who received an imperial constitution dated 3 February 339 (addressed in a brief extract from one of the three emperors ruling in 339, Constantine II, Constantius II, or Constans, in the Codex Theodosianus, book XI.5). What does seem certain is that Ambrose was born in Trier and his father was either the praetorian prefect or part of his administration.
A legend about Ambrose as an infant recounts that a swarm of bees settled on his face while he lay in his cradle, leaving behind a drop of honey. His father is said to have considered this a sign of his future eloquence and honeyed tongue. Bees and beehives often appear in the saint's symbology.
Ambrose's mother was a woman of intellect and piety. It was probable that she was a member of the Roman family Aurelii Symmachi, which would make Ambrose a cousin of the orator Quintus Aurelius Symmachus. The family had produced one martyr (the virgin Soteris) in its history. Ambrose was the youngest of three children. His siblings were Satyrus, the subject of Ambrose's De excessu fratris Satyri, and Marcellina, who made a profession of virginity sometime between 352 and 355; Pope Liberius himself conferred the veil upon her. Both Ambrose's siblings also became venerated as saints.
Sometime early in the life of Ambrose, his father died. At an unknown later date, his mother left Trier with her three children, and the family moved to Rome. There Ambrose studied literature, law, and rhetoric. He then followed in his father's footsteps and entered public service. Praetorian Prefect Sextus Claudius Petronius Probus first gave him a place as a judicial councillor, and then in about 372 made him governor of the province of Liguria and Emilia, with headquarters in Milan. |
Ambrose | Bishop of Milan | Bishop of Milan
In 374 the bishop of Milan, Auxentius, an Arian, died, and the Arians challenged the succession. Ambrose went to the church where the election was to take place to prevent an uproar which seemed probable in this crisis. His address was interrupted by a call, "Ambrose, bishop!", which was taken up by the whole assembly.
Ambrose, though known to be Nicene Christian in belief, was considered acceptable to Arians due to the charity he had shown concerning their beliefs. At first, he energetically refused the office of bishop, for which he felt he was in no way prepared: Ambrose was a relatively new Christian who was not yet baptized nor formally trained in theology. Ambrose fled to a colleague's home, seeking to hide. Upon receiving a letter from the Emperor Gratian praising the appropriateness of Rome appointing individuals worthy of holy positions, Ambrose's host gave him up. Within a week, he was baptized, ordained and duly consecrated as the new bishop of Milan. This was the first time in the West that a member of the upper class of high officials had accepted the office of bishop.
As bishop, he immediately adopted an ascetic lifestyle, apportioned his money to the poor, donating all of his land, making only provision for his sister Marcellina. While Bishop of Milan, Ambrose carefully cultivated practices that respected local customs and that reflected his spiritual beliefs. He understood the link between a religious leader's life and their ability to model morality for congregants. In his work De Officiis (377–391), he asked, "How can you consider a man to be better than you when it comes to giving advice if you see that he is worse than you when it comes to morality?"(De Officiis 2.12.62) His humble and upright ways raised his standing among his people even further; it was his popularity with the people that gave him considerable political leverage throughout his career. Upon the unexpected appointment of Ambrose to the episcopate, his brother Satyrus resigned a prefecture in order to move to Milan, where he took over managing the diocese's temporal affairs. |
Ambrose | Arianism | Arianism
Arius (died 336) was a Christian priest who around the year 300 asserted that God the Father must have created the Son, indicating that the Son was a lesser being who was not eternal and of a different "essence" from God the Father. This Christology, though contrary to tradition, quickly spread through Egypt, Libya and other Roman provinces. Bishops engaged in the dispute, and the people divided into parties, sometimes demonstrating in the streets in support of one side or the other.
Arianism appealed to many high-level leaders and clergy in both the Western and Eastern empires. Although the western Emperor Gratian () supported orthodoxy, his younger half brother Valentinian II, who became his colleague in the empire in 375, adhered to the Arian creed. Ambrose sought to refute Arian propositions theologically, but Ambrose did not sway the young prince's position. In the East, Emperor Theodosius I () likewise professed the Nicene creed; but there were many adherents of Arianism throughout his dominions, especially among the higher clergy.
In this state of religious ferment, two leaders of the Arians, bishops Palladius of Ratiaria and Secundianus of Singidunum, confident of numbers, prevailed upon Gratian to call a general council from all parts of the empire. This request appeared so equitable that Gratian complied without hesitation. However, Ambrose feared the consequences and prevailed upon the emperor to have the matter determined by a council of the Western bishops. Accordingly, a synod composed of thirty-two bishops was held at Aquileia in the year 381. Ambrose was elected president and Palladius, being called upon to defend his opinions, declined. A vote was then taken and Palladius and his associate Secundianus were deposed from their episcopal offices.
Ambrose struggled with Arianism for over half of his term in the episcopate. Ecclesiastical unity was important to the church, but it was no less important to the state, and as a Roman, Ambrose felt strongly about that. Conflict over heresies loomed large in an age of religious ferment comparable to the Reformation of the fourteenth and fifteenth centuries.: "[...] the history of the early Church [...] was [...] a golden age of religious ferment and controversy such as - it could well be argued - would not be seen again until the Reformation, more than a millennium later. Orthodox Christianity was determining how to define itself as it faced multiple challenges on both a theological and a practical level, and Ambrose exercised crucial influence at a crucial time. |
Ambrose | Imperial relations | Imperial relations
Ambrose had good relations and varying levels of influence with the Roman emperors Gratian, Valentinian II and Theodosius I, but exactly how much influence, what kind of influence, and in what ways, when, has been debated in the scholarship of the late twentieth and early twenty-first centuries. |
Ambrose | Gratian | Gratian
It has long been convention to see Gratian and Ambrose as having a personal friendship, putting Ambrose in the dominant role of spiritual guide, but modern scholars now find this view hard to support from the sources. The ancient Christian historian Sozomen () is the only ancient source that shows Ambrose and Gratian together in any personal interaction. In that interaction, Sozomen relates that, in the last year of Gratian's reign, Ambrose intruded on Gratian's private hunting party in order to appeal on behalf of a pagan senator sentenced to die. After years of acquaintance, according to professor Neil B. McLynn, this indicates that Ambrose could not take for granted that Gratian would see him, so instead, Ambrose had to resort to such manoeuvrings to make his appeal.
Gratian was personally devout long before meeting Ambrose. Modern scholarship indicates Gratian's religious policies do not evidence capitulation to Ambrose more than they evidence Gratian's own views. Gratian's devotion did lead Ambrose to write a large number of books and letters of theology and spiritual commentary dedicated to the emperor. The sheer volume of these writings and the effusive praise they contain has led many historians to conclude that Gratian was dominated by Ambrose, and it was that dominance that produced Gratian's anti-pagan actions. McLynn asserts that effusive praises were common in everyone's correspondence with the crown. He adds that Gratian's actions were determined by the constraints of the system as much as "by his own initiatives or Ambrose's influence".
McLynn asserts that the largest influence on Gratian's policy was the profound change in political circumstances produced by the Battle of Adrianople in 378. Gratian had become involved in fighting the Goths the previous year and had been on his way to the Balkans when his uncle and the "cream of the eastern army" were destroyed at Adrianople. Gratian withdrew to Sirmium and set up his court there. Several rival groups, including the Arians, sought to secure benefits from the government at Sirmium. In an Arian attempt to undermine Ambrose, whom Gratian had not yet met, Gratian was "warned" that Ambrose's faith was suspect. Gratian took steps to investigate by writing to Ambrose and asking him to explain his faith.
Ambrose and Gratian first met, after this, in 379 during a visit to Milan. The bishop made a good impression on Gratian and his court, which was pervasively Christian and aristocratic – much like Ambrose himself. The emperor returned to Milan in 380 to find that Ambrose had complied with his request for a statement of his faith – in two volumes – known as De Fide: a statement of orthodoxy and of Ambrose' political theology, as well as a polemic against the Arian heresy – intended for public discussion. The emperor had not asked to be instructed by Ambrose, and in De Fide Ambrose states this clearly. Nor was he asked to refute the Arians. He was asked to justify his own position, but in the end, he did all three.
It seems that by 382 Ambrose had replaced Ausonius to become a major influence in Gratian's court. Ambrose had not yet become the "conscience" of kings he would in the later 380s, but he did speak out against reinstating the Altar of Victory. In 382, Gratian was the first to divert public financial subsidies that had previously supported Rome's cults. Before that year, contributions in support of the ancient customs had continued unchallenged by the state. |
Ambrose | Valentinian II | Valentinian II
The childless Gratian had treated his younger brother Valentinian II like a son. Ambrose, on the other hand, had incurred the lasting enmity of Valentinian II's mother, the Empress Justina, in the winter of 379 by helping to appoint a Nicene bishop in Sirmium. Not long after this, Valentinian II, his mother, and the court left Sirmium; Sirmium had come under Theodosius' control, so they went to Milan which was ruled by Gratian.
In 383 Gratian was assassinated at Lyon, in Gaul (France) by Magnus Maximus. Valentinian was twelve years old, and the assassination left his mother, Justina, in a position of something akin to a regent. In 385 (or 386) the emperor Valentinian II and his mother Justina, along with a considerable number of clergy, the laity, and the military, professed Arianism. Conflict between Ambrose and Justina soon followed.
The Arians demanded that Valentinian allocate to them two churches in Milan: one in the city (the Basilica of the Apostles), the other in the suburbs (St Victor's). Ambrose refused to surrender the churches. He answered by saying that "What belongs to God, is outside the emperor's power." In this, Ambrose called on an ancient Roman principle: a temple set apart to a god became the property of that god. Ambrose now applied this ancient legal principle to the Christian churches, seeing the bishop, as a divine representative, as guardian of his god's property.
Subsequently, while Ambrose was performing the Liturgy of the Hours in the basilica, the prefect of the city came to persuade him to give it up to the Arians. Ambrose again refused. Certain deans (officers of the court) were sent to take possession of the basilica by hanging upon it imperial escutcheons. Instead, soldiers from the ranks the emperor had placed around the basilica began pouring into the church, assuring Ambrose of their fidelity. The escutcheons outside the church were removed, and legend says the children tore them to shreds.
Ambrose refused to surrender the basilica, and sent sharp answers back to his emperor: "If you demand my person, I am ready to submit: carry me to prison or to death, I will not resist; but I will never betray the church of Christ. I will not call upon the people to succour me; I will die at the foot of the altar rather than desert it. The tumult of the people I will not encourage: but God alone can appease it." By Thursday, the emperor gave in, bitterly responding: "Soon, if Ambrose gives the orders, you will be sending me to him in chains."
In 386, Justina and Valentinian II received the Arian bishop Auxentius the younger, and Ambrose was again ordered to hand over a church in Milan for Arian usage. Ambrose and his congregation barricaded themselves inside the church, and again the imperial order was rescinded. There was an attempted kidnapping, and another attempt to arrest him and to force him to leave the city. Several accusations were made, but unlike in the case of John Chrysostom, no formal charges were brought. The emperor certainly had the power to do so, and probably did not solely because of Ambrose's popularity with the people and what they might do.
When Magnus Maximus usurped power in Gaul (383) and was considering a descent upon Italy, Valentinian sent Ambrose to dissuade him, and the embassy was successful (384). A second, later embassy was unsuccessful. Magnus Maximus entered Italy (386–387) and Milan was taken. Justina and her son fled, but Ambrose remained and had the plate of the church melted for the relief of the poor. |
Ambrose | Theodosius | Theodosius
While Ambrose was writing De Fide, Theodosius published his own statement of faith in 381 in an edict establishing Nicene Christianity as the only legitimate version of the Christian faith. There is unanimity amongst scholars that this represents the emperor's own beliefs. The aftermath of the death (378) of Valens (Emperor in the East from 364 to 378) had left many questions for the church unresolved, and Theodosius' edict can be seen as an effort to begin addressing those questions. Theodosius' natural generosity was tempered by his pressing need to establish himself and to publicly assert his personal piety.
On 28 February 380, Theodosius issued the Edict of Thessalonica, a decree addressed to the city of Constantinople, determining that only Christians who did not support Arian views were catholic and could have their places of worship officially recognized as "churches". The Edict opposed Arianism, and attempted to establish unity in Christianity and to suppress heresy. German ancient historian writes that the Edict of Thessalonica was neither anti-pagan nor antisemitic; it did not declare Christianity to be the official religion of the empire; and it gave no advantage to Christians over other faiths.
Liebeschuetz and Hill indicate that it was not until after 388, during Theodosius' stay in Milan following the defeat of Maximus in 388, that Theodosius and Ambrose first met.
thumb|Saint Ambrose barring Theodosius from Milan Cathedral a "pious fiction" painted in 1619 by Anthony van Dyck. National Gallery, London
After the Massacre of Thessalonica in 390, Theodosius made an act of public penance at Ambrose's behest. Ambrose was away from court during the events at Thessalonica, but after being informed of them, he wrote Theodosius a letter. In that still-existing letter, Ambrose presses for a semi-public demonstration of penitence from the emperor, telling him that, as his bishop, he will not give Theodosius communion until it is done. Wolf Liebeschuetz says "Theodosius duly complied and came to church without his imperial robes, until Christmas, when Ambrose openly admitted him to communion".
Formerly, some scholars credited Ambrose with having an undue influence over Emperor Theodosius I, from this period forward, prompting him toward major anti-pagan legislation beginning in February of 391. However, this interpretation has been heavily disputed since the late-twentieth century. McLynn argues that Theodosius's anti-pagan legislation was too limited in scope for it to be of interest to the bishop. The fabled encounter at the door of the cathedral in Milan, with Ambrose as the mitred prelate braced, blocking Theodosius from entering, which has sometimes been seen as evidence of Ambrose' dominance over Theodosius, has been debunked by modern historians as "a pious fiction". There was no encounter at the church door. The story is a product of the imagination of Theodoret, a historian of the fifth century who wrote of the events of 390 "using his own ideology to fill the gaps in the historical record".
The twenty-first-century view is that Ambrose was "not a power behind the throne". The two men did not meet each other frequently, and documents that reveal the relationship between the two are less about personal friendship than they are about negotiations between two formidable leaders of the powerful institutions they represent: the Roman State and the Italian Church. Cameron says there is no evidence that Ambrose was a significant influence on the emperor.
For centuries after his death, Theodosius was regarded as a champion of Christian orthodoxy who decisively stamped out paganism. This view was recorded by Theodoret, who is recognized as an unreliable historian, in the century following their deaths. Theodosius's predecessors Constantine (), Constantius (), and Valens had all been semi-Arians. Therefore, it fell to the orthodox Theodosius to receive from Christian literary tradition most of the credit for the final triumph of Christianity. Modern scholars see this as an interpretation of history by orthodox Christian writers more than as a representation of actual history. The view of a pious Theodosius submitting meekly to the authority of the church, represented by Ambrose, is part of the myth that evolved within a generation of their deaths. |
Ambrose | Later years and death | Later years and death
thumb|240px|Embossed silver urn with the body of Ambrose (with white vestments) in the crypt of Sant'Ambrose, with the skeletons of Gervase and Protase|alt=
In April 393 Arbogast (magister militum of the West) and his puppet Emperor Eugenius marched into Italy to consolidate their position against Theodosius I and his son, Honorius, now appointed Augustus to govern the western portion of the empire. Arbogast and Eugenius courted Ambrose's support by very obliging letters; but before they arrived at Milan, he had retired to Bologna, where he assisted at the translation of the relics of Saints Vitalis and Agricola. From there he went to Florence, where he remained until Eugenius withdrew from Milan to meet Theodosius in the Battle of the Frigidus in early September 394.
Soon after acquiring the undisputed possession of the Roman Empire, Theodosius died at Milan in 395, and Ambrose gave the eulogy. Two years later (4 April 397) Ambrose also died. He was succeeded as bishop of Milan by Simplician. Ambrose's body may still be viewed in the church of Saint Ambrogio in Milan, where it has been continuously venerated – along with the bodies identified in his time as being those of Saints Gervase and Protase.
Ambrose is remembered in the calendar of the Roman Rite of the Catholic Church on 7 December, and is also honoured in the Church of England and in the Episcopal Church on 7 December. |
Ambrose | Character | Character
In 1994, Neil B. McLynn wrote a complex study of Ambrose that focused on his politics and was intended to "demonstrate that Ambrose viewed community as a means to acquire personal political power". Subsequent studies of how Ambrose handled his episcopal responsibilities, his Nicene theology and his dealings with the Arians in his episcopate, his pastoral care, his commitment to community, and his personal asceticism, have mitigated this view.
thumb|200px|Statue of Saint Ambrose with a scourge in Museo del Duomo, Milan. Unknown Lombard author, early 17th century.
All of Ambrose's writings are works of advocacy for Nicene Christianity, and even his political views and actions were closely related to his religion. He was rarely, if ever, concerned about simply recording what had happened; he did not write to reveal his inner thoughts and struggles; he wrote to advocate for his God. Boniface Ramsey writes that it is difficult "not to posit a deep spirituality in a man" who wrote on the mystical meanings of the Song of Songs and wrote many extraordinary hymns. Despite an abiding spirituality, Ambrose had a generally straightforward manner, and a practical rather than a speculative tendency in his thinking. De Officiis is a utilitarian guide for his clergy in their daily ministry in the Milanese church rather than "an intellectual tour de force".
Christian faith in the third century developed the monastic lifestyle which subsequently spread into the rest of Roman society in a general practice of virginity, voluntary poverty and self-denial for religious reasons. This lifestyle was embraced by many new converts, including Ambrose, even though they did not become actual monks.
The bishops of this era had heavy administrative responsibilities, and Ambrose was also sometimes occupied with imperial affairs, but he still fulfilled his primary responsibility to care for the well-being of his flock. He preached and celebrated the Eucharist multiple times a week, sometimes daily, and dealt directly with the needs of the poor, as well as widows and orphans, "virgins" (nuns), and his own clergy. He replied to letters personally, practised hospitality, and made himself available to the people.
thumb|Saint Ambrose in His Study, . Spanish, Palencia. Wood with traces of polychromy. Metropolitan Museum of Art, New York City.
Ambrose had the ability to maintain good relationships with all kinds of people. Local church practices varied quite a bit from place to place at this time, and as the bishop, Ambrose could have required that everyone adapt to his way of doing things. It was his place to keep the churches as united as possible in both ritual and belief. Instead, he respected local customs, adapting himself to whatever practices prevailed, instructing his mother to do the same. As bishop, Ambrose undertook many different labours in an effort to unite people and "provide some stability during a period of religious, political, military, and social upheavals and transformations".
Brown says Ambrose "had the makings of a faction fighter". While he got along well with most people, Ambrose was not averse to conflict and even opposed emperors with a fearlessness born of self-confidence and a clear conscience and not from any belief he would not suffer for his decisions. Having begun his life as a Roman aristocrat and a governor, it is clear that Ambrose retained the attitudes and practices of Roman governance even after becoming a bishop.
His acts and writings show he was quite clear about the limits of imperial power over the church's internal affairs including doctrine, moral teaching, and governance. He wrote to Valentinian: "In matters of faith bishops are the judges of Christian emperors, not emperors of bishops." (Epistle 21.4). He also famously said to an Arian bishop chosen by the emperor, "The emperor is in the church, not over the church." (Sermon Against Auxentius, 36). Ambrose's acts and writings "created a sort of model which was to remain valid in the Latin West for the relations of the Church and the Christian State. Both powers stood in a basically positive relationship to each other, but the innermost sphere of the Church's life--faith, the moral order, ecclesiastical discipline--remained withdrawn from the State's influence."
Ambrose was also well aware of the limits of his power. At the height of his career as a venerable, respected and well-loved bishop in 396, imperial agents marched into his church, pushing past him and his clergy who had crowded the altar to protect a political suspect from arrest, and dragged the man from the church in front of Ambrose who could do nothing to stop them. "When it came to the central functions of the Roman state, even the vivid Ambrose was a lightweight". |
Ambrose | Attitude towards Jews | Attitude towards Jews
Ambrose is recorded on occasions as taking a hostile attitude towards Jews, for example in 388, when the Emperor Theodosius I was informed that a crowd of Christians had retaliated against the local Jewish community by destroying the synagogue at Callinicum on the Euphrates. The synagogue most probably existed within the fortified town to serve the soldiers stationed there, and Theodosius ordered that the offenders be punished and that the synagogue be rebuilt at the expense of the bishop. Ambrose wrote to the emperor arguing against this, basing his argument on two assertions: first, if the bishop obeyed the order, it would be a betrayal of his faith, and second, if the bishop instead refused to obey the order, he would become a martyr and create a scandal embarrassing the emperor. Ambrose, referring to a prior incident where Magnus Maximus issued an edict censuring Christians in Rome for burning down a Jewish synagogue, warned Theodosius that the people, in turn, exclaimed "the emperor has become a Jew", implying that Theodosius would receive the same lack of support from the people. Theodosius rescinded the order concerning the bishop.
That was not enough for Ambrose, however, and when Theodosius next visited Milan Ambrose confronted him directly in an effort to get him to drop the entire case. McLynn argues that Ambrose failed to win the emperor's sympathy and was mostly excluded from his counsels thereafter. The Callinicum affair was not an isolated incident. Generally speaking, however, while McLynn says it makes Ambrose look like a bully and a bigot to modern eyes, scholars also agree that Ambrose's attitudes toward the Jews cannot be fairly summarized in one sentence, as not all of Ambrose's attitudes toward Jews were negative.
For example, Ambrose makes extensive and appreciative use of the works of a Jew, Philo of Alexandria, in his own writings, treating Philo as one of the "faithful interpreters of the Scriptures". Philo was an educated man of some standing and a prolific writer during the era of Second Temple Judaism. Forty–three of his treatises have been preserved, and these by Christians, rather than Jews. Philo became foundational in forming the Christian literary view on the six days of creation through Basil's Hexaemeron. Eusebius, the Cappadocian Fathers, and Didymus the Blind appropriated material from Philo as well, but none did so more than Ambrose. As a result of these extensive references, Philo was accepted into the Christian tradition as an honorary Church Father. "In fact, one Byzantine catena even refers to him as 'Bishop Philo'. This high regard for Philo even led to a number of legends of his conversion to Christianity, although this assertion stands on very dubious evidence". Ambrose also used Josephus, Maccabees, and other Jewish sources for his writings. He praises some individual Jews. Ambrose tended to write negatively of all non-Nicenes as if they were all in one category. This served a rhetorical purpose in his writing and should be considered accordingly. |
Ambrose | Attitude towards pagans | Attitude towards pagans
Modern scholarship indicates that paganism was a lesser concern than heresy for Christians in the fourth and fifth centuries, including Ambrose, but it was still a concern. Writings of this period were commonly hostile and often contemptuous toward paganism which Christianity saw as already defeated in Heaven. The great Christian writers of the third to fifth centuries attempted to discredit the continuation of these "defeated practices" by searching pagan writings, "particularly those of Varro, for everything that could be regarded by Christian standards as repulsive and irreligious." Ambrose' work reflects this triumphalism.{{efn|These Christian sources have had great influence on perceptions of this period by creating an impression of overt and continuous conflict that has been assumed on an empire-wide scale, while archaeological evidence indicates that, apart from the use of violent rhetoric, the decline of paganism away from the imperial court was relatively non-confrontational.{{sfnm|Trombley|2001|1loc=Vol I|1pp=166-168|Trombley|2001|2loc=Vol II|2pp=335-336}}}}
Throughout his time in the episcopate, Ambrose was active in his opposition to any state sponsorship of pagan cults. When Gratian ordered the Altar of Victory to be removed, it roused the aristocracy of Rome to send a delegation to the emperor to appeal against the decision, but Pope Damasus I induced Christian senators to petition against it, and Ambrose blocked the delegates from obtaining an audience with the emperor.Ambrose Epistles 17-18; Symmachus Relationes 1-3. Under Valentinian II, an effort was made to restore the Altar of Victory to its ancient station in the hall of the Roman Senate and to again provide support for the seven Vestal Virgins. The pagan party was led by the refined senator Quintus Aurelius Symmachus, who used all his prodigious skill and artistry to create a marvellous document full of the maiestas populi Romani. Hans Lietzmann writes that "Pagans and Christians alike were stirred by the solemn earnestness of an admonition which called all men of goodwill to the aid of a glorious history, to render all worthy honour to a world that was fading away".
Then Ambrose wrote to Valentinian asserting that the emperor was a soldier of God – not simply a personal believer, but one bound by his position to serve the faith; under no circumstances could he agree to something that would promote the worship of idols. Ambrose held up the example of Valentinian's brother, Gratian, reminding Valentinian that the commandment of God must take precedence. The bishop's intervention led to the failure of Symmachus' appeal.
In 389, Ambrose stepped in against a pagan senatorial delegation who wished to see the emperor Theodosius I. Although Theodosius refused their requests, he was irritated at the bishop's presumption and refused to see him for several days. Later, Ambrose wrote a letter to the emperor Eugenius complaining that some gifts the latter had bestowed on pagan senators could be used for funding pagan cults.
Theology
Ambrose joins Augustine, Jerome, and Gregory the Great as one of the Latin Doctors of the Church. Theologians compare him with Hilary, who they claim fell short of Ambrose's administrative excellence but demonstrated greater theological ability. He succeeded as a theologian despite his juridical training and his comparatively late handling of biblical and doctrinal subjects.
Ambrose's intense episcopal consciousness furthered the growing doctrine of the Church and its sacerdotal ministry including teaching, leading services, administering sacraments, and giving pastoral advice. He found a proper balance between offering sacraments as mysterious ways of encountering God and sacramentalism, the emphasis on ritual for ritual's sake, prevalent elsewhere.(Ford and Wilhite, 2024) He engaged the prevalent asceticism of the day, continuing the Stoic and Ciceronian training of his youth, which enabled him to promulgate a lofty standard of Christian ethics. Thus we have the De officiis ministrorum, De viduis, De virginitate and De paenitentia.
Ambrose displayed a kind of liturgical flexibility that kept in mind that liturgy was a tool to serve people in worshiping God, and ought not to become a rigid entity that is invariable from place to place. His advice to Augustine of Hippo on this point was to follow local liturgical custom. "When I am at Rome, I fast on a Saturday; when I am at Milan, I do not. Follow the custom of the church where you are." Thus Ambrose refused to be drawn into a false conflict over which particular local church had the "right" liturgical form where there was no substantial problem. His advice has remained in the English language as the saying, "When in Rome, do as the Romans do."
Eschatology
Some scholars argue that Ambrose was a Christian universalist. It has been noted that Ambrose's theology was significantly influenced by that of Origen and Didymus the Blind, two other early Christian universalists. One quotation cited in favour of this belief is:
One could interpret this passage as being another example of the Christian belief in a general resurrection (that both those in Heaven and in Hell undergo a bodily resurrection), or an allusion to purgatory (that some destined for Heaven must first undergo a phase of purification). Some other works by Ambrose could potentially be seen as teaching the mainstream view of salvation. For example:
This could be interpreted as something which is not eschatological but rather rhetorical or conditional on the state of repentance. The passage most often cited in support of Ambrose supposed belief in apokatastasis is his commentary on 1 Corinthians 15, it reads:
Other scholars interpret Ambrose's soteriology to be in agreement with Jerome of Stridon and the anonymous individuals whom Augustine criticized in his treatise "on faith and works", who argued that while the unbelievers would experience eternal judgement, all Christians who have believed in Jesus will be reunited to God at some point, even if they have sinned and fallen away.
Giving to the poor
In De Officiis, the most influential of his surviving works, and one of the most important texts of patristic literature, he reveals his views connecting justice and generosity by asserting these practices are of mutual benefit to the participants. Ambrose draws heavily on Cicero and the biblical book of Genesis for this concept of mutual inter-dependence in society. In the bishop's view, it is concern for one another's interests that binds society together. Ambrose asserts that avarice leads to a breakdown in this mutuality, therefore avarice leads to a breakdown in society itself. In the late 380s, the bishop took the lead in opposing the greed of the elite landowners in Milan by starting a series of pointed sermons directed at his wealthy constituents on the need for the rich to care for the poor.
Some scholars have suggested Ambrose's endeavours to lead his people as both a Roman and a Christian caused him to strive for what a modern context would describe as a type of communism or socialism. He was not just interested in the church but was also interested in the condition of contemporary Italian society. Ambrose considered the poor not a distinct group of outsiders, but a part of a united people to be stood with in solidarity. Giving to the poor was not to be considered an act of generosity towards the fringes of society but a repayment of resources that God had originally bestowed on everyone equally and that the rich had usurped. He defines justice as providing for the poor whom he describes as our "brothers and sisters" because they "share our common humanity".
Mariology
The theological treatises of Ambrose of Milan would come to influence Popes Damasus, Siricius and Leo XIII. Central to Ambrose is the virginity of Mary and her role as Mother of God.
The virgin birth is worthy of God. Which human birth would have been more worthy of God, than the one in which the Immaculate Son of God maintained the purity of his immaculate origin while becoming human?Ambrose of Milan CSEL 64, 139
We confess that Christ the Lord was born from a virgin, and therefore we reject the natural order of things. Because she conceived not from a man but from the Holy Spirit.Ambrose of Milan, De Mysteriis, 59, pp. 16, 410
Christ is not divided but one. If we adore him as the Son of God, we do not deny his birth from the virgin. ... But nobody shall extend this to Mary. Mary was the temple of God but not God in the temple. Therefore, only the one who was in the temple can be worshipped.
Yes, truly blessed for having surpassed the priest (Zechariah). While the priest denied, the Virgin rectified the error. No wonder that the Lord, wishing to rescue the world, began his work with Mary. Thus she, through whom salvation was being prepared for all people, would be the first to receive the promised fruit of salvation.Ambrose of Milan, Expositio in Lucam 2, 17; PL 15, 1640
Ambrose viewed celibacy as superior to marriage and saw Mary as the model of virginity.De virginibus (On Virgins); De virginitate
Augustine
Ambrose studied theology with Simplician, a presbyter of Rome. Using his excellent knowledge of Greek, which was then rare in the West, Ambrose studied the Old Testament and Greek authors like Philo, Origen, Athanasius, and Basil of Caesarea, with whom he was also exchanging letters. Ambrose became a famous rhetorician whom Augustine came to hear speak. Augustine wrote in his Confessions that Faustus, the Manichean rhetorician, was a more impressive speaker, but the content of Ambrose's sermons began to affect Augustine's faith. Augustine sought guidance from Ambrose and again records in his Confessions that Ambrose was too busy to answer his questions. In a passage of Augustine's Confessions in which Augustine wonders why he could not share his burden with Ambrose, he comments: "Ambrose himself I esteemed a happy man, as the world counted happiness, because great personages held him in honour. Only his celibacy appeared to me a painful burden."Augustine. Confessions Book Six, Chapter Three. Simplician regularly met with Augustine, however, and Augustine writes of Simplician's "fatherly affection" for him. It was Simplician who introduced Augustine to Christian Neoplatonism. It is commonly understood in the Christian tradition that Ambrose baptized Augustine.
In this same passage of Augustine's Confessions is an anecdote which bears on the history of reading:
This is a celebrated passage in modern scholarly discussion. The practice of reading to oneself without vocalizing the text was less common in antiquity than it has since become. In a culture that set a high value on oratory and public performances of all kinds, in which the production of books was very labour-intensive, the majority of the population was illiterate, and where those with the leisure to enjoy literary works also had slaves to read for them, written texts were more likely to be seen as scripts for recitation than as vehicles of silent reflection. However, there is also evidence that silent reading did occur in antiquity and that it was not generally regarded as unusual.
Music
thumb|right|Mosaic of Ambrose, in Westminster Cathedral, London
Ambrose's writings extend past literature and into music, where he was an important innovator in early Christian hymnography. His contributions include the "successful invention of Christian Latin hymnody", while the hymnologist Guido Maria Dreves designated him to be "The Father of church hymnody". He was not the first to write Latin hymns; the Bishop Hilary of Poitiers had done so a few decades before. However, the hymns of Hilary are thought to have been largely inaccessible because of their complexity and length. Only fragments of hymns from Hilary's Liber hymnorum exist, making those of Ambrose the earliest extant complete Latin hymns. The assembling of Ambrose's surviving oeuvre remains controversial; the almost immediate popularity of his style quickly prompted imitations, some which may even date from his lifetime. There are four hymns for which Ambrose's authorship is universally accepted, as they are attributed to him by Augustine:
"Aeterne rerum conditor"
"Deus creator omnium"
"Iam surgit hora tertia"
"Veni redemptor gentium" (also known as "Intende qui regis Israel")
Each of these hymns has eight four-line stanzas and is written in strict iambic tetrameter (that is 4 × 2 syllables, each iamb being two syllables). Marked by dignified simplicity, they served as a fruitful model for later times. Scholars such as the theologian Brian P. Dunkle have argued for the authenticity of as many as thirteen other hymns, while the musicologist James McKinnon contends that further attributions could include "perhaps some ten others". Ambrose is traditionally credited but not actually known to have composed any of the repertory of Ambrosian chant also known simply as "antiphonal chant", a method of chanting where one side of the choir alternately responds to the other. Although Ambrosian chant was named in his honour, no Ambrosian-chant melodies can be attributed to Ambrose. With Augustine, Ambrose was traditionally credited with composing the hymn "Te Deum". Since the hymnologist Guido Maria Dreves in 1893, however, scholars have dismissed this attribution.
Writings
thumb|De officiis ministrorum (377–391) in a manuscript now kept in the Abbey library of Saint Gall (Cod. Sang. 97 p. 51). The work is probably Ambrose's best known.
Source: All works are originally in Latin. Following each is where it may be found in a standard compilation of Ambrose's writings. His first work was probably De paradiso (377–378). Most have approximate dates, and works such as De Helia et ieiunio (377–391), Expositio evangelii secundum Lucam (377–389) and De officiis ministrorum (377–391) have been given a wide variety of datings by scholars. His best known work is probably De officiis ministrorum (377–391), while the (386–390) and De obitu Theodosii (395) are among his most noted works. In matters of exegesis he is, like Hilary, an Alexandrian. In dogma he follows Basil of Caesarea and other Greek authors, but nevertheless gives a distinctly Western cast to the speculations of which he treats. This is particularly manifest in the weightier emphasis which he lays upon human sin and divine grace, and in the place which he assigns to faith in the individual Christian life. There has been debate on the attribution of some writings: for example De mysteriis is usually attributed to Ambrose, while the related De sacramentis is written in a different style with some silent disagreements, so there is less consensus over its author.St. Ambrose "On the mysteries" and the treatise "On the sacraments" by an unknown author, archive.org This latter work was occasionally identified as being by St. Augustine, though this is erroneous.Roy J. Deferrari, introduction to The Sacraments, in Ambrose: Theological and Dogmatic Works, ed. by Deferrari, Fathers of the Church: A New Translation, vol. 44. JSTOR.
Exegesis
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91 letters
Editions
thumb|Divi Ambrosii Episcopi Mediolanensis Omnia Opera, a 1527 edition of Ambrose's writings compiled and edited by Erasmus
The history of the editions of St. Ambrose's works spans several centuries. Erasmus published them in four volumes in Basel in 1527. A significant Roman edition, the result of many years of labor, appeared in 1580 in five volumes, initiated by Sixtus V when he was still the monk Felice Peretti. This edition includes a biography of St. Ambrose by Baronius, originally written to be part of his Annales Ecclesiastici. The notable Maurist edition, edited by Jacques Du Frische and Denis-Nicolas Le Nourry, was published in Paris between 1686 and 1690 in two folio volumes and was later reprinted in Venice in 1748–51 and 1781–82. The most recent edition, by Paolo Angelo Ballerini, was published in Milan in 1878 in six folio volumes.
Standard editions
Based on the Maurist edition published in Paris by Jacques Du Frische and Denis-Nicolas Le Nourry.
Based on the Maurist edition published in Paris by Jacques Du Frische and Denis-Nicolas Le Nourry.
Latin
Hexameron, De paradiso, De Cain, De Noe, De Abraham, De Isaac, De bono mortis – ed. C. Schenkl 1896, Vol. 32/1 (In Latin)
De Iacob, De Ioseph, De patriarchis, De fuga saeculi, De interpellatione Iob et David, De apologia prophetae David, De Helia, De Nabuthae, De Tobia – ed. C. Schenkl 1897, Vol. 32/2
Expositio evangelii secundum Lucam – ed. C. Schenkl 1902, Vol. 32/4
Expositio de psalmo CXVIII – ed. M. Petschenig 1913, Vol. 62; editio altera supplementis aucta – cur. M. Zelzer 1999
Explanatio super psalmos XII – ed. M. Petschenig 1919, Vol. 64; editio altera supplementis aucta – cur. M. Zelzer 1999
Explanatio symboli, De sacramentis, De mysteriis, De paenitentia, De excessu fratris Satyri, De obitu Valentiniani, De obitu Theodosii – ed. Otto Faller 1955, Vol. 73
De fide ad Gratianum Augustum – ed. Otto Faller 1962, Vol. 78
De spiritu sancto, De incarnationis dominicae sacramento – ed. Otto Faller 1964, Vol. 79
Epistulae et acta – ed. Otto Faller (Vol. 82/1: lib. 1–6, 1968); Otto Faller, M. Zelzer (Vol. 82/2: lib. 7–9, 1982); M. Zelzer (Vol. 82/3: lib. 10, epp. extra collectionem. gesta concilii Aquileiensis, 1990); Indices et addenda – comp. M. Zelzer, 1996, Vol. 82/4
English
H. Wace and P. Schaff, eds, A Select Library of Nicene and Post–Nicene Fathers of the Christian Church, 2nd ser., Vol. X [Contains translations of De Officiis (under the title De Officiis Ministrorum), De Spiritu Sancto (On the Holy Spirit), De excessu fratris Satyri (On the Decease of His Brother Satyrus), Exposition of the Christian Faith, De mysteriis (Concerning Mysteries), De paenitentia (Concerning Repentance), De virginibus (Concerning Virgins), De viduis (Concerning Widows), and a selection of letters]
St. Ambrose "On the mysteries" and the treatise on the sacraments by an unknown author, translated by T Thompson, (London: SPCK, 1919) [translations of De sacramentis and De mysteriis; rev edn published 1950]
S. Ambrosii De Nabuthae: a commentary, translated by Martin McGuire, (Washington, DC: The Catholic University of America, 1927) [translation of On Naboth]
S. Ambrosii De Helia et ieiunio: a commentary, with an introduction and translation, Sister Mary Joseph Aloysius Buck, (Washington, DC: The Catholic University of America, 1929) [translation of On Elijah and Fasting]
S. Ambrosii De Tobia: a commentary, with an introduction and translation, Lois Miles Zucker, (Washington, DC: The Catholic University of America, 1933) [translation of On Tobit]
Funeral orations, translated by LP McCauley et al., Fathers of the Church vol 22, (New York: Fathers of the Church, Inc., 1953) [by Gregory of Nazianzus and Ambrose],
Letters, translated by Mary Melchior Beyenka, Fathers of the Church, vol 26, (Washington, DC: Catholic University of America, 1954) [Translation of letters 1–91]
Saint Ambrose on the sacraments, edited by Henry Chadwick, Studies in Eucharistic faith and practice 5, (London: AR Mowbray, 1960)
Hexameron, Paradise, and Cain and Abel, translated by John J Savage, Fathers of the Church, vol 42, (New York: Fathers of the Church, 1961) [contains translations of Hexameron, De paradise, and De Cain et Abel]
Saint Ambrose: theological and dogmatic works, translated by Roy J. Deferrari, Fathers of the church vol 44, (Washington: Catholic University of American Press, 1963) [Contains translations of The mysteries, (De mysteriis) The holy spirit, (De Spiritu Sancto), The sacrament of the incarnation of Our Lord, (De incarnationis Dominicae sacramento), and The sacraments]
Seven exegetical works, translated by Michael McHugh, Fathers of the Church, vol 65, (Washington: Catholic University of America Press, 1972) [Contains translations of Isaac, or the soul, (De Isaac vel anima), Death as a good, (De bono mortis), Jacob and the happy life, (De Iacob et vita beata), Joseph, (De Ioseph), The patriarchs, (De patriarchis), Flight from the world, (De fuga saeculi), The prayer of Job and David, (De interpellatione Iob et David).]
Homilies of Saint Ambrose on Psalm 118, translated by Íde Ní Riain, (Dublin: Halcyon Press, 1998) [translation of part of Explanatio psalmorum]
Ambrosian hymns, translated by Charles Kraszewski, (Lehman, PA: Libella Veritatis, 1999)
Commentary of Saint Ambrose on twelve psalms, translated by Íde M. Ní Riain, (Dublin: Halcyon Press, 2000) [translations of Explanatio psalmorum on Psalms 1, 35–40, 43, 45, 47–49]
On Abraham, translated by Theodosia Tomkinson, (Etna, CA: Center for Traditionalist Orthodox Studies, 2000) [translation of De Abraham]
De officiis, edited with an introduction, translation, and commentary by Ivor J Davidson, 2 vols, (Oxford: OUP, 2001) [contains both Latin and English text]
Commentary of Saint Ambrose on the Gospel according to Saint Luke, translated by Íde M. Ní Riain, (Dublin: Halcyon, 2001) [translation of Expositio evangelii secundum Lucam]
Ambrose of Milan: political letters and speeches, translated with an introduction and notes by JHWG Liebschuetz, (Liverpool: Liverpool University Press, 2005) [contains Book Ten of Ambrose's Letters, including the oration on the death of Theodosius I; Letters outside the Collection (Epistulae extra collectionem); Letter 30 to Magnus Maximus; The oration on the death of Valentinian II (De obitu Valentiniani).]
Several of Ambrose's works have recently been published in the bilingual Latin-German Fontes Christiani series (currently edited by Brepols).
See also
Ambrosian hymnography
Ambrosian Liturgy and Rite
Saint Ambrose Basilica, Milan
Church Fathers
St. Ambrose Cathedral, Linares
Saint Ambrose University, Davenport, Iowa
Ambrose University College, Calgary, Alberta
Henry Becher, early English translator of St. Ambrose
References
Notes
Citations
Works cited
Ford, Coleman M., Shawn J. Wilhite (2024). Ancient Wisdom for the Care of Souls. Wheaton, Ill: Crossway.ISBN 978-1-4335-7549-5.
Further reading
External links
Christian Classics Ethereal Library, Works of Ambrose of Milan
Hymni Ambrosii (Latin)
EarlyChurch.org.uk Extensive bibliography
Ambrose's works: text, concordances and frequency list
Letters of Ambrose - All extant letters of Ambrose with summaries and English translations from Fourth-Century Christianity. Ambrose at The Online Library of Liberty''
Opera Omnia
Ambrose in Anglo-Saxon England, with Pseudo-Ambrose and Ambrosiaster, Contributions to Sources of Anglo-Saxon Literary Culture, by Dabney Anderson Bankert, Jessica Wegmann, and Charles D. Wright.
"Saint Ambrose" at the Christian Iconography website
"Of St. Ambrose" from the Caxton translation of the Golden Legend
Augustine's account of the penitence of Theodosius
Ambrosius
Category:340s births
Category:Year of birth unknown
Category:397 deaths
Category:4th-century Italian bishops
Category:4th-century Christian saints
Category:4th-century Christian theologians
Category:4th-century Gallo-Roman people
Category:4th-century writers in Latin
Category:4th-century philosophers
Category:4th-century Roman poets
Category:Bishops of Milan
Category:Burials at the Basilica of Sant'Ambrogio
Category:Catholic Mariology
Category:Catholic philosophers
Category:Christian ethicists
Category:Christian hymnwriters
Category:Church Fathers
Category:Doctors of the Church
Category:Gallo-Roman saints
Category:Hymnographers
Category:Letter writers in Latin
Category:Opponents of Arianism
Category:People from Trier
Category:Anglican saints
Category:Bees in religion |
Ambrose | Table of Content | Short description, Background and career, Early life, Bishop of Milan, Arianism, Imperial relations, Gratian, Valentinian II, Theodosius, Later years and death, Character, Attitude towards Jews, Attitude towards pagans |
Ambracia | Short description |
Ambracia (; , occasionally , Ampracia) was a city of ancient Greece on the site of modern Arta. It was founded by the Corinthians in 625 BC and was situated about from the Ambracian Gulf, on a bend of the navigable river Arachthos (or Aratthus), in the midst of a fertile wooded plain. |
Ambracia | Name | Name
It was named after Ambracia, who according to some myths was Augeas daughter, while others describe her as Apollo's granddaughter and the daughter of Melaneus, king of the Dryope.A Dictionary of Greek and Roman biography and mythology, Ambracia
According to a different story, the town was named after Ambrax, Thesprotus son and Lycaon's grandson. |
Ambracia | History | History
Ambracia was founded between 650 and 625 BC by Gorgus, son of the Corinthian tyrant Cypselus, at which time its economy was based on farmlands, fishing, timber for shipbuilding, and the exportation of the produce of Epirus. After the expulsion of Gorgus's son Periander its government developed into a strong democracy. The early policy of Ambracia was determined by its loyalty to Corinth (for which it probably served as an entrepot in the Epirus trade), and its consequent aversion to Corcyra (as Ambracia participated on the Corinthian side at the Battle of Sybota, which took place in 433 BC between the rebellious Corinthian colony of Corcyra (modern Corfu) and Corinth).
Ambraciot politics featured many frontier disputes with the Amphilochians and Acarnanians. Hence it took a prominent part in the Peloponnesian War until the crushing defeat at Idomene (426), which crippled its resources.
In the 4th century BC, it continued its traditional policy but in 338 was besieged by Philip II of Macedon. With the assistance of Corinth and Athens, it escaped complete domination at Philip's hands but was nevertheless forced to accept a Macedonian garrison. In 294 BC, after forty-three years of semi-autonomy under Macedonian suzerainty, Ambracia was given by the son of Cassander to Pyrrhus, king of Epirus, who made it his capital and adorned it with palaces, temples, and theatres. In the wars of Philip V of Macedon and the Epirotes against the Aetolian League (220–205), Ambracia passed from one alliance to the other but ultimately joined the latter confederacy. During the struggle of the Aetolians against Rome, it withstood a stubborn siege, including the first known use of poison gas against the Romans' siege tunnels.Polybius 21.28 There was an ancient book, titled Ambrakika (Ἀμβρακικά), by the writer Athanadas, that detailed the history of Ambracia. No copies of the work survive, but it was referred to by later writers such as Antoninus Liberalis as an authority on the subject.
Ambracia was captured and plundered by Marcus Fulvius Nobilior in 189 BC, after which it was declared by Rome a "free city" and gradually fell into insignificance. The foundation by Augustus of Nicopolis, into which the remaining inhabitants were drafted, left the site desolate. In Byzantine times a new settlement took its place under the name of Arta. Some fragmentary walls of large, well-dressed blocks near this latter town indicate the early prosperity of Ambracia. |
Ambracia | Ambraciotes | Ambraciotes |
Ambracia | Artists | Artists
Epigonus of Ambracia, 6th BC musician
Nicocles, auletes
Hippasus, tragic actor
Epicrates of Ambracia, c. 4th BC comic poetbiographical sketch online. |
Ambracia | Athletes | Athletes
Sophron, Stadion Olympics 432 BC
Tlasimachus, Tethrippon and Synoris Olympics 296 BC
Andromachus, Stadion Olympics 60 BC |
Ambracia | Various | Various
Silanus of Ambracia, 5th BC seer
Cleombrotus of Ambracia, student of Plato |
Ambracia | See also | See also
List of cities in ancient Epirus
List of ancient Greek cities |
Ambracia | References | References
Attribution:
Category:Cities in ancient Epirus
Category:Populated places established in the 7th century BC
Category:Corinthian colonies
Category:Former populated places in Greece
Category:Populated places in ancient Acarnania
Category:Populated places in ancient Epirus
Category:Pyrrhus of Epirus
Category:Archaeological sites in Epirus (region)
Category:Arta, Greece |
Ambracia | Table of Content | Short description, Name, History, Ambraciotes, Artists, Athletes, Various, See also, References |
Amber | short description | thumb|An ant inside Baltic amber
thumb|right|Unpolished amber stones
Amber is fossilized tree resin. Examples of it have been appreciated for its color and natural beauty since the Neolithic times, and worked as a gemstone since antiquity."Amber" (2004). In Maxine N. Lurie and Marc Mappen (eds.) Encyclopedia of New Jersey, Rutgers University Press, . Amber is used in jewelry and as a healing agent in folk medicine.
There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions. Amber occurring in coal seams is also called resinite, and the term ambrite is applied to that found specifically within New Zealand coal seams.Poinar GO, Poinar R. (1995) The quest for life in amber. Basic Books, , p. 133 |
Amber | Etymology | Etymology
The English word amber derives from Arabic via Middle Latin ambar and Middle French ambre. The word referred to what is now known as ambergris (ambre gris or "gray amber"), a solid waxy substance derived from the sperm whale. The word, in its sense of "ambergris," was adopted in Middle English in the 14th century.
In the Romance languages, the sense of the word was extended to Baltic amber (fossil resin) from as early as the late 13th century. At first called white or yellow amber (ambre jaune), this meaning was adopted in English by the early 15th century. As the use of ambergris waned, this became the main sense of the word.
The two substances ("yellow amber" and "gray amber") conceivably became associated or confused because they both were found washed up on beaches. Ambergris is less dense than water and floats, whereas amber is denser and floats only in concentrated saline, or strong salty seawater though less dense than stone.see: Abu Zaid al Hassan from Siraf & Sulaiman the Merchant (851), Silsilat-al-Tawarikh (travels in Asia).
The classical names for amber, Ancient Greek (ēlektron) and one of its Latin names, electrum, are connected to a term ἠλέκτωρ (ēlektōr) meaning "beaming Sun".Homeric (Iliad 6.513, 19.398). The feminine being later used as a name of the Moon.The derivation of the modern term "electric" from the Greek word for amber dates to the 1600 (Latin electricus "amber-like", in De Magnete by William Gilbert). .
The word "electron" (for the fundamental particle) was coined in 1891 by the Irish physicist George Stoney whilst analyzing elementary charges for the first time. . According to myth, when Phaëton, son of Helios (the Sun) was killed, his mourning sisters became poplar trees, and their tears became elektron, amber.Michael R. Collings, Gemlore: An Introduction to Precious and Semi-Precious Stones, 2009, p. 20 The word elektron gave rise to the words electric, electricity, and their relatives because of amber's ability to bear a charge of static electricity."Electric." Online Etymological Dictionary. Retrieved 6 September 2018. |
Amber | Varietal names | Varietal names
A number of regional and varietal names have been applied to ambers over the centuries, including allingite, beckerite, gedanite, kochenite, krantzite, and stantienite. |
Amber | History | History
Theophrastus discussed amber in the 4th century BCE, as did Pytheas (), whose work "On the Ocean" is lost, but was referenced by Pliny, according to whose Natural History:Natural History 37.11 .Pytheas says that the Gutones, a people of Germany, inhabit the shores of an estuary of the Ocean called Mentonomon, their territory extending a distance of six thousand stadia; that, at one day's sail from this territory, is the Isle of Abalus, upon the shores of which, amber is thrown up by the waves in spring, it being an excretion of the sea in a concrete form; as, also, that the inhabitants use this amber by way of fuel, and sell it to their neighbors, the Teutones.thumb|Fishing for amber on the coast of Baltic Sea. Winter storms throw out amber nuggets. Close to Gdańsk, Poland.
Earlier Pliny says that Pytheas refers to a large island—three days' sail from the Scythian coast and called Balcia by Xenophon of Lampsacus (author of a fanciful travel book in Greek)—as Basilia—a name generally equated with Abalus.Natural History IV.27.13 or IV.13.95 in the Loeb edition. Given the presence of amber, the island could have been Heligoland, Zealand, the shores of Gdańsk Bay, the Sambia Peninsula or the Curonian Lagoon, which were historically the richest sources of amber in northern Europe. There were well-established trade routes for amber connecting the Baltic with the Mediterranean (known as the "Amber Road"). Pliny states explicitly that the Germans exported amber to Pannonia, from where the Veneti distributed it onwards.
The ancient Italic peoples of southern Italy used to work amber; the National Archaeological Museum of Siritide (Museo Archeologico Nazionale della Siritide) at Policoro in the province of Matera (Basilicata) displays important surviving examples. It has been suggested that amber used in antiquity, as at Mycenae and in the prehistory of the Mediterranean, came from deposits in Sicily.
thumb|upright|Wood resin, the source of amber
Pliny also cites the opinion of Nicias ( 470–413 BCE), according to whom amber Besides the fanciful explanations according to which amber is "produced by the Sun", Pliny cites opinions that are well aware of its origin in tree resin, citing the native Latin name of succinum (sūcinum, from sucus "juice").Compare succinic acid as well as succinite, a term given to a particular type of amber by James Dwight Dana In Book 37, section XI of Natural History, Pliny wrote:
He also states that amber is also found in Egypt and India, and he even refers to the electrostatic properties of amber, by saying that "in Syria the women make the whorls of their spindles of this substance, and give it the name of harpax [from ἁρπάζω, "to drag"] from the circumstance that it attracts leaves towards it, chaff, and the light fringe of tissues".
The Romans traded for amber from the shores of the southern Baltic at least as far back as the time of Nero.
Amber has a long history of use in China, with the first written record from 200 BCE. Early in the 19th century, the first reports of amber found in North America came from discoveries in New Jersey along Crosswicks Creek near Trenton, at Camden, and near Woodbury. |
Amber | Composition and formation | Composition and formation
Amber is heterogeneous in composition, but consists of several resinous more or less soluble in alcohol, ether and chloroform, associated with an insoluble bituminous substance. Amber is a macromolecule formed by free radical polymerization of several precursors in the labdane family, for example, communic acid, communol, and biformene.Manuel Villanueva-García, Antonio Martínez-Richa, and Juvencio Robles Assignment of vibrational spectra of labdatriene derivatives and ambers: A combined experimental and density functional theoretical study Arkivoc (EJ-1567C) pp. 449–458 These labdanes are diterpenes (C20H32) and trienes, equipping the organic skeleton with three alkene groups for polymerization. As amber matures over the years, more polymerization takes place as well as isomerization reactions, crosslinking and cyclization.
Most amber has a hardness between 2.0 and 2.5 on the Mohs scale, a refractive index of 1.5–1.6, a specific gravity between 1.06 and 1.10, and a melting point of 250–300 °C. Heated above , amber decomposes, yielding an oil of amber, and leaves a black residue which is known as "amber colophony", or "amber pitch"; when dissolved in oil of turpentine or in linseed oil this forms "amber varnish" or "amber lac".
Molecular polymerization, resulting from high pressures and temperatures produced by overlying sediment, transforms the resin first into copal. Sustained heat and pressure drives off terpenes and results in the formation of amber. For this to happen, the resin must be resistant to decay. Many trees produce resin, but in the majority of cases this deposit is broken down by physical and biological processes. Exposure to sunlight, rain, microorganisms, and extreme temperatures tends to disintegrate the resin. For the resin to survive long enough to become amber, it must be resistant to such forces or be produced under conditions that exclude them.Poinar, George O. (1992) Life in amber. Stanford, Calif.: Stanford University Press, p. 12, Fossil resins from Europe fall into two categories, the Baltic ambers and another that resembles the Agathis group. Fossil resins from the Americas and Africa are closely related to the modern genus Hymenaea, while Baltic ambers are thought to be fossil resins from plants of the family Sciadopityaceae that once lived in north Europe.thumb|Baltic amber with inclusions
The abnormal development of resin in living trees (succinosis) can result in the formation of amber. Impurities are quite often present, especially when the resin has dropped onto the ground, so the material may be useless except for varnish-making. Such impure amber is called firniss. Such inclusion of other substances can cause the amber to have an unexpected color. Pyrites may give a bluish color. Bony amber owes its cloudy opacity to numerous tiny bubbles inside the resin. However, so-called black amber is really a kind of jet. In darkly clouded and even opaque amber, inclusions can be imaged using high-energy, high-contrast, high-resolution X-rays.thumb|Amber from Bitterfeld |
Amber | Extraction and processing | Extraction and processing |
Amber | Distribution and mining | Distribution and mining
thumb|upright=1.35|Open cast amber mine "Primorskoje" in Jantarny, Kaliningrad Oblast, Russia
thumb|Extracting Baltic amber from Holocene deposits, Gdańsk, PolandAmber is globally distributed in or around all continents, mainly in rocks of Cretaceous age or younger. Historically, the coast west of Königsberg in Prussia was the world's leading source of amber. The first mentions of amber deposits there date back to the 12th century. Juodkrantė in Lithuania was established in the mid-19th century as a mining town of amber. About 90% of the world's extractable amber is still located in that area, which was transferred to the Russian Soviet Federative Socialist Republic of the USSR in 1946, becoming the Kaliningrad Oblast.
Pieces of amber torn from the seafloor are cast up by the waves and collected by hand, dredging, or diving. Elsewhere, amber is mined, both in open works and underground galleries. Then nodules of blue earth have to be removed and an opaque crust must be cleaned off, which can be done in revolving barrels containing sand and water. Erosion removes this crust from sea-worn amber. Dominican amber is mined through bell pitting, which is dangerous because of the risk of tunnel collapse.Wichard, Wilfred and Weitschat, Wolfgang (2004) Im Bernsteinwald. – Gerstenberg Verlag, Hildesheim,
An important source of amber is Kachin State in northern Myanmar, which has been a major source of amber in China for at least 1,800 years. Contemporary mining of this deposit has attracted attention for unsafe working conditions and its role in funding internal conflict in the country. Amber from the Rivne Oblast of Ukraine, referred to as Rivne amber, is mined illegally by organised crime groups, who deforest the surrounding areas and pump water into the sediments to extract the amber, causing severe environmental deterioration. |
Amber | Treatment | Treatment
The Vienna amber factories, which use pale amber to manufacture pipes and other smoking tools, turn it on a lathe and polish it with whitening and water or with rotten stone and oil. The final luster is given by polishing with flannel.
When gradually heated in an oil bath, amber "becomes soft and flexible. Two pieces of amber may be united by smearing the surfaces with linseed oil, heating them, and then pressing them together while hot. Cloudy amber may be clarified in an oil bath, as the oil fills the numerous pores that cause the turbidity. Small fragments, formerly thrown away or used only for varnish are now used on a large scale in the formation of "ambroid" or "pressed amber". The pieces are carefully heated with exclusion of air and then compressed into a uniform mass by intense hydraulic pressure, the softened amber being forced through holes in a metal plate. The product is extensively used for the production of cheap jewelry and articles for smoking. This pressed amber yields brilliant interference colors in polarized light."
Amber has often been imitated by other resins like copal and kauri gum, as well as by celluloid and even glass. Baltic amber is sometimes colored artificially but also called "true amber". |
Amber | Appearance | Appearance
thumb|Unique colors of Baltic amber. Polished stones.
Amber occurs in a range of different colors. As well as the usual yellow-orange-brown that is associated with the color "amber", amber can range from a whitish color through a pale lemon yellow, to brown and almost black. Other uncommon colors include red amber (sometimes known as "cherry amber"), green amber, and even blue amber, which is rare and highly sought after.
Yellow amber is a hard fossil resin from evergreen trees, and despite the name it can be translucent, yellow, orange, or brown colored. Known to the Iranians by the Pahlavi compound word kah-ruba (from kah "straw" plus rubay "attract, snatch", referring to its electrical properties), which entered Arabic as kahraba' or kahraba (which later became the Arabic word for electricity, كهرباء kahrabā), it too was called amber in Europe (Old French and Middle English ambre). Found along the southern shore of the Baltic Sea, yellow amber reached the Middle East and western Europe via trade. Its coastal acquisition may have been one reason yellow amber came to be designated by the same term as ambergris. Moreover, like ambergris, the resin could be burned as an incense. The resin's most popular use was, however, for ornamentation—easily cut and polished, it could be transformed into beautiful jewelry. Much of the most highly prized amber is transparent, in contrast to the very common cloudy amber and opaque amber. Opaque amber contains numerous minute bubbles. This kind of amber is known as "bony amber"."Amber". (1999). In G. W. Bowersock, Peter Brown, Oleg Grabar (eds.) Late Antiquity: A Guide to the Postclassical World, Harvard University Press, .
thumb|right|Blue amber from Dominican Republic
Although all Dominican amber is fluorescent, the rarest Dominican amber is blue amber. It turns blue in natural sunlight and any other partially or wholly ultraviolet light source. In long-wave UV light it has a very strong reflection, almost white. Only about is found per year, which makes it valuable and expensive.
Sometimes amber retains the form of drops and stalactites, just as it exuded from the ducts and receptacles of the injured trees. It is thought that, in addition to exuding onto the surface of the tree, amber resin also originally flowed into hollow cavities or cracks within trees, thereby leading to the development of large lumps of amber of irregular form. |
Amber | Classification | Classification
Amber can be classified into several forms. Most fundamentally, there are two types of plant resin with the potential for fossilization. Terpenoids, produced by conifers and angiosperms, consist of ring structures formed of isoprene (C5H8) units. Phenolic resins are today only produced by angiosperms, and tend to serve functional uses. The extinct medullosans produced a third type of resin, which is often found as amber within their veins. The composition of resins is highly variable; each species produces a unique blend of chemicals which can be identified by the use of pyrolysis–gas chromatography–mass spectrometry. The overall chemical and structural composition is used to divide ambers into five classes. There is also a separate classification of amber gemstones, according to the way of production. |
Amber | Class I | Class I
This class is by far the most abundant. It comprises labdatriene carboxylic acids such as communic or ozic acids. It is further split into three sub-classes. Classes Ia and Ib utilize regular labdanoid diterpenes (e.g. communic acid, communol, biformenes), while Ic uses enantio labdanoids (ozic acid, ozol, enantio biformenes).
Class Ia includes Succinite (= 'normal' Baltic amber) and Glessite. They have a communic acid base, and they also include much succinic acid. Baltic amber yields on dry distillation succinic acid, the proportion varying from about 3% to 8%, and being greatest in the pale opaque or bony varieties. The aromatic and irritating fumes emitted by burning amber are mainly from this acid. Baltic amber is distinguished by its yield of succinic acid, hence the name succinite. Succinite has a hardness between 2 and 3, which is greater than many other fossil resins. Its specific gravity varies from 1.05 to 1.10. It can be distinguished from other ambers via infrared spectroscopy through a specific carbonyl absorption peak. Infrared spectroscopy can detect the relative age of an amber sample. Succinic acid may not be an original component of amber but rather a degradation product of abietic acid.
Class Ib ambers are based on communic acid; however, they lack succinic acid.
Class Ic is mainly based on enantio-labdatrienonic acids, such as ozic and zanzibaric acids. Its most familiar representative is Dominican amber,. which is mostly transparent and often contains a higher number of fossil inclusions. This has enabled the detailed reconstruction of the ecosystem of a long-vanished tropical forest.George Poinar, Jr. and Roberta Poinar, 1999. The Amber Forest: A Reconstruction of a Vanished World, (Princeton University Press) Resin from the extinct species Hymenaea protera is the source of Dominican amber and probably of most amber found in the tropics. It is not "succinite" but "retinite".Grimaldi, D. A. (1996) Amber – Window to the Past. – American Museum of Natural History, New York, |
Amber | Class II | Class II
These ambers are formed from resins with a sesquiterpenoid base, such as cadinene. |
Amber | Class III | Class III
These ambers are polystyrenes. |
Amber | Class IV | Class IV
Class IV is something of a catch-all: its ambers are not polymerized, but mainly consist of cedrene-based sesquiterpenoids. |
Amber | Class V | Class V
Class V resins are considered to be produced by a pine or pine relative. They comprise a mixture of diterpinoid resins and n-alkyl compounds. Their main variety is Highgate copalite. |
Amber | Geological record | Geological record
thumb|upright|Typical amber specimen with a number of indistinct inclusions
The oldest amber recovered dates to the late Carboniferous period (). Its chemical composition makes it difficult to match the amber to its producers – it is most similar to the resins produced by flowering plants; however, the first flowering plants appeared in the Early Cretaceous, about 200 million years after the oldest amber known to date, and they were not common until the Late Cretaceous. Amber becomes abundant long after the Carboniferous, in the Early Cretaceous, when it is found in association with insects. The oldest amber with arthropod inclusions comes from the Late Triassic (late Carnian 230 Ma) of Italy, where four microscopic (0.2–0.1 mm) mites, Triasacarus, Ampezzoa, Minyacarus and Cheirolepidoptus, and a poorly preserved nematoceran fly were found in millimetre-sized droplets of amber. The oldest amber with significant numbers of arthropod inclusions comes from Lebanon. This amber, referred to as Lebanese amber, is roughly 125–135 million years old, is considered of high scientific value, providing evidence of some of the oldest sampled ecosystems.Poinar, P.O., Jr., and R.K. Milki (2001) Lebanese Amber: The Oldest Insect Ecosystem in Fossilized Resin. Oregon State University Press, Corvallis. .
In Lebanon, more than 450 outcrops of Lower Cretaceous amber were discovered by Dany Azar, a Lebanese paleontologist and entomologist. Among these outcrops, 20 have yielded biological inclusions comprising the oldest representatives of several recent families of terrestrial arthropods. Even older Jurassic amber has been found recently in Lebanon as well. Many remarkable insects and spiders were recently discovered in the amber of Jordan including the oldest zorapterans, clerid beetles, umenocoleid roaches, and achiliid planthoppers.
thumb|upright|A snail and a few insects trapped within Burmese amber
Burmese amber from the Hukawng Valley in northern Myanmar is the only commercially exploited Cretaceous amber. Uranium–lead dating of zircon crystals associated with the deposit have given an estimated depositional age of approximately 99 million years ago. Over 1,300 species have been described from the amber, with over 300 in 2019 alone.
Baltic amber is found as irregular nodules in marine glauconitic sand, known as blue earth, occurring in Upper Eocene strata of Sambia in Prussia. It appears to have been partly derived from older Eocene deposits and it occurs also as a derivative phase in later formations, such as glacial drift. Relics of an abundant flora occur as inclusions trapped within the amber while the resin was yet fresh, suggesting relations with the flora of eastern Asia and the southern part of North America. Heinrich Göppert named the common amber-yielding pine of the Baltic forests Pinites succiniter, but as the wood does not seem to differ from that of the existing genus it has been also called Pinus succinifera. It is improbable that the production of amber was limited to a single species; and indeed a large number of conifers belonging to different genera are represented in the amber-flora. |
Amber | Paleontological significance | Paleontological significance
Amber is a unique preservational mode, preserving otherwise unfossilizable parts of organisms; as such it is helpful in the reconstruction of ecosystems as well as organisms;BBC – Radio 4 – Amber . Db.bbc.co.uk (16 February 2005). Retrieved on 23 April 2011. the chemical composition of the resin, however, is of limited utility in reconstructing the phylogenetic affinity of the resin producer. Amber sometimes contains animals or plant matter that became caught in the resin as it was secreted. Insects, spiders and even their webs, annelids, frogs, crustaceans, bacteria and amoebae, marine microfossils, wood, flowers and fruit, hair, feathers and other small organisms have been recovered in Cretaceous ambers (deposited c. ). There is even an ammonite Puzosia (Bhimaites) and marine gastropods found in Burmese amber.
thumb|left|200px|Skeleton of the frog Electrorana preserved in mid-Cretaceous Burmese amber.|alt=
The preservation of prehistoric organisms in amber forms a key plot point in Michael Crichton's 1990 novel Jurassic Park and the 1993 movie adaptation by Steven Spielberg. In the story, scientists are able to extract the preserved blood of dinosaurs from prehistoric mosquitoes trapped in amber, from which they genetically clone living dinosaurs. Scientifically this is as yet impossible, since no amber with fossilized mosquitoes has ever yielded preserved blood. Amber is, however, conducive to preserving DNA, since it dehydrates and thus stabilizes organisms trapped inside. One projection in 1999 estimated that DNA trapped in amber could last up to 100 million years, far beyond most estimates of around 1 million years in the most ideal conditions, although a later 2013 study was unable to extract DNA from insects trapped in much more recent Holocene copal. In 1938, 12-year-old David Attenborough (brother of Richard who played John Hammond in Jurassic Park) was given a piece of amber containing prehistoric creatures from his adoptive sister; it would be the focus of his 2004 BBC documentary The Amber Time Machine. |
Amber | Use | Use
thumb|Solutrean amber from Altamira in the Muséum de Toulouse
Amber has been used since prehistory (Solutrean) in the manufacture of jewelry and ornaments, and also in folk medicine. |
Amber | Jewelry | Jewelry
thumb|upright|Pendants made of amber. The oval pendant is .
thumb|upright|Amber necklace from 2000 to 1000 BCE
Amber has been used as jewelry since the Stone Age, from 13,000 years ago. Amber ornaments have been found in Mycenaean tombs and elsewhere across Europe.Curt W. Beck, Anthony Harding and Helen Hughes-Brock, "Amber in the Mycenaean World" The Annual of the British School at Athens, vol. 69 (November 1974), pp. 145–172. DOI:10.1017/S0068245400005505 To this day it is used in the manufacture of smoking and glassblowing mouthpieces. Amber's place in culture and tradition lends it a tourism value; Palanga Amber Museum is dedicated to the fossilized resin. |
Amber | Historical medicinal uses | Historical medicinal uses
Amber has long been used in folk medicine for its purported healing properties. Amber and extracts were used from the time of Hippocrates in ancient Greece for a wide variety of treatments through the Middle Ages and up until the early twentieth century.
Amber necklaces are a traditional European remedy for colic or teething pain with purported analgesic properties of succinic acid, although there is no evidence that this is an effective remedy or delivery method. The American Academy of Pediatrics and the FDA have warned strongly against their use, as they present both a choking and a strangulation hazard. |
Amber | Scent of amber and amber perfumery | Scent of amber and amber perfumery
In ancient China, it was customary to burn amber during large festivities. If amber is heated under the right conditions, oil of amber is produced, and in past times this was combined carefully with nitric acid to create "artificial musk" – a resin with a peculiar musky odor.. Although when burned, amber does give off a characteristic "pinewood" fragrance, modern products, such as perfume, do not normally use actual amber because fossilized amber produces very little scent. In perfumery, scents referred to as "amber" are often created and patentedThermer, Ernst T. "Saturated indane derivatives and processes for producing same" , , issue date 1972Perfume compositions and perfume articles containing one isomer of an octahydrotetramethyl acetonaphthone, John B. Hall, Rumson; James Milton Sanders, Eatontown , Publication Date: 30 December 1975 to emulate the opulent golden warmth of the fossil.Sorcery of Scent: Amber: A perfume myth . Sorceryofscent.blogspot.com (30 July 2008). Retrieved on 23 April 2011.
The scent of amber was originally derived from emulating the scent of ambergris and/or the plant resin labdanum, but since sperm whales are endangered, the scent of amber is now largely derived from labdanum. The term "amber" is loosely used to describe a scent that is warm, musky, rich and honey-like, and also somewhat earthy. Benzoin is usually part of the recipe. Vanilla and cloves are sometimes used to enhance the aroma. "Amber" perfumes may be created using combinations of labdanum, benzoin resin, copal (a type of tree resin used in incense manufacture), vanilla, Dammara resin and/or synthetic materials.
In Arab Muslim tradition, popular scents include amber, jasmine, musk and oud (agarwood). |
Amber | Imitation substances | Imitation substances
Young resins used as imitations:
Kauri resin from Agathis australis trees in New Zealand.
The copals (subfossil resins). The African and American (Colombia) copals from Leguminosae trees family (genus Hymenaea). Amber of the Dominican or Mexican type (Class I of fossil resins). Copals from Manilia (Indonesia) and from New Zealand from trees of the genus Agathis (family Araucariaceae)
Other fossil resins: burmite in Burma, rumenite in Romania, and simetite in Sicily.
Other natural resins — cellulose or chitin, etc.
Plastics used as imitations:
Stained glass (inorganic material) and other ceramic materials
Celluloid
Cellulose nitrate (first obtained in 1833) — a product of treatment of cellulose with nitration mixture.
Acetylcellulose (not in the use at present)
Galalith or "artificial horn" (condensation product of casein and formaldehyde), other trade names: Alladinite, Erinoid, Lactoid.
Casein — a conjugated protein forming from the casein precursor – caseinogen.
Resolane (phenolic resins or phenoplasts, not in the use at present)
Bakelite resine (resol, phenolic resins), product from Africa are known under the misleading name "African amber".
Carbamide resins — melamine, formaldehyde and urea-formaldehyde resins.
Epoxy novolac (phenolic resins), unofficial name "antique amber", not in the use at present
Polyesters (Polish amber imitation) with styrene. For example, unsaturated polyester resins (polymals) are produced by Chemical Industrial Works "Organika" in Sarzyna, Poland; estomal are produced by Laminopol firm. Polybern or sticked amber is artificial resins the curled chips are obtained, whereas in the case of amber – small scraps. "African amber" (polyester, synacryl is then probably other name of the same resine) are produced by Reichhold firm; Styresol trade mark or alkid resin (used in Russia, Reichhold, Inc. patent, 1948.
Polyethylene
Epoxy resins
Polystyrene and polystyrene-like polymers (vinyl polymers).
The resins of acrylic type (vinyl polymers), especially polymethyl methacrylate PMMA (trade mark Plexiglass, metaplex). |
Amber | See also | See also
Ammolite
Illyrian amber jewellery
List of types of amber
Petrified wood
Pearl
Poly(methyl methacrylate)
Precious coral |
Amber | Notes | Notes |
Amber | References | References |
Amber | Bibliography | Bibliography
|
Amber | External links | External links
Farlang many full text historical references on Amber Theophrastus, George Frederick Kunz, and special on Baltic amber.
IPS Publications on amber inclusions International Paleoentomological Society: Scientific Articles on amber and its inclusions
Webmineral on Amber Physical properties and mineralogical information
Mindat Amber Image and locality information on amber
NY Times 40 million year old extinct bee in Dominican amber
Category:Fossil resins
Category:Amorphous solids
Category:Traditional medicine |
Amber | Table of Content | short description, Etymology, Varietal names, History, Composition and formation, Extraction and processing, Distribution and mining, Treatment, Appearance, Classification, Class I, Class II, Class III, Class IV, Class V, Geological record, Paleontological significance, Use, Jewelry, Historical medicinal uses, Scent of amber and amber perfumery, Imitation substances, See also, Notes, References, Bibliography, External links |
Amalaric | Infobox royalty
| Amalaric (;Kelsie B. Harder, Names and their varieties: a collection of essays in onomastics, American Name Society, University Press of America, 1984, pp. 10-11 Spanish and Portuguese: Amalarico; 502–531) was king of the Visigoths from 522 until his assassination. He was a son of king Alaric II and his first wife Theodegotha, daughter of Theodoric the Great. |
Amalaric | Biography | Biography
When Alaric II was killed while fighting Clovis I, king of the Franks, in the Battle of Vouillé (507), his kingdom fell into disarray. "More serious than the destruction of the Gothic army," writes Herwig Wolfram, "than the loss of both Aquitanian provinces and the capital of Toulose, was the death of the king."Herwig Wolfram, History of the Goths, translated by Thomas J. Dunlap (Berkeley: University of California, 1988), p. 244 Alaric had made no provision for a successor, and although he had two sons, one was of age but illegitimate and the other, Amalaric, the offspring of a legal marriage but still a child. Amalaric was carried for safety into Spain, which country and Provence were thenceforth ruled by his maternal grandfather, Theodoric the Great, acting through his vice-regent, an Ostrogothic nobleman named Theudis. The older son, Gesalec, was chosen as king but his reign was disastrous. King Theodoric of the Ostrogoths sent an army, led by his sword-bearer Theudis, against Gesalec, ostensibly on behalf of Amalaric; Gesalec fled to Africa. The Ostrogoths then drove back the Franks and their Burgundian allies, regaining possession of "the south of Novempopulana, Rodez, probably even Albi, and even Toulose". Following the 511 death of Clovis, Theodoric negotiated a peace with Clovis' successors, securing Visigothic control of the southernmost portion of Gaul for the rest of the existence of their kingdom.Wolfram, History of the Goths, p. 245
In 522, the young Amalaric was proclaimed king, and four years later, on Theodoric's death, he assumed full royal power, although relinquishing Provence to his cousin Athalaric. His kingdom was faced with a Frankish threat from the north; according to Peter Heather, this was his motivation for marrying Chrotilda, the daughter of Clovis.Peter Heather, The Goths (Oxford: Blackwell, 1996), p. 277 However, this was not successful, for according to Gregory of Tours, Amalaric pressured her to forsake Orthodoxy and convert to Arian Christianity, at one point beating her until she bled; she sent to her brother Childebert I, king of Paris, a towel stained with her own blood.Gregory of Tours, Decem Libri Historiarum, III.10; translated by Lewis Thorpe, History of the Franks (Harmondsworth: Penguin, 1974), pp. 170f. Ian Wood noted that although Gregory provides the fullest information for this period, where it touches Merovingian affairs, he often "allowed his religious bias to determine his interpretation of the events."Wood, The Merovingian Kingdoms: 450-751 (London: Longman, 1994), p. 171 Peter Heather agrees with Wood's implication in this instance: "I doubt that this is the full story, but the effects of Frankish intervention are clear enough."
Childebert defeated the Visigothic army and took Narbonne. Amalaric fled south to Barcelona, where according to Isidore of Seville, he was assassinated by his own men.Isidore of Seville, History of the Goths, chapter 40. Translation by Guido Donini and Gordon B. Ford, Isidore of Seville's History of the Goths, Vandals, and Suevi, second revised edition (Leiden: E.J. Brill, 1970), p. 19 According to Peter Heather, Theodoric's former governor Theudis was implicated in Amalaric's murder, "and was certainly its prime beneficiary."Heather, The Goths, p. 278 As for Chrotilda, in Gregory's words, she died on the journey home "by some ill chance". Childebert had her body brought to Paris where she was buried alongside her father Clovis. |
Amalaric | Notes | Notes |
Amalaric | External links | External links |
Amalaric | Further reading | Further reading
Edward Gibbon, History of the Decline and Fall of the Roman Empire, Chapter 39
Category:500s births
Category:531 deaths
Category:Balt dynasty
Category:Assassinated Gothic people
Category:6th-century murdered monarchs
Category:6th-century Visigothic monarchs
Category:Year of birth unknown |
Amalaric | Table of Content | Infobox royalty
, Biography, Notes, External links, Further reading |
Alphorn | Short description | thumb|Eliana Burki playing the alphorn at the Bardentreffen festival in Nuremberg 2009
The alphorn (; ; ) is a traditional lip-reed wind instrument. It consists of a very long straight wooden natural horn, with a length of , a conical bore and a wooden cup-shaped mouthpiece. Traditionally the alphorn was made in one piece from the trunk of a pine. Modern alphorns are usually made in three detachable sections for easier transport and handling, carved from blocks of spruce. The alphorn is used by rural communities in the Alps. Similar wooden horns were used for communication in most mountainous regions of Europe, from the Alps to the Carpathians. |
Alphorn | History | History
The alphorn may have developed from instruments like the , a similarly shaped Etruscan instrument of classical antiquity, although there is little documented evidence of a continuous connection between them. A 2nd century Roman mosaic, found in Boscéaz, depicts a shepherd using a similar straight horn. The use of long signal horns in mountainous areas throughout Europe and Asia may indicate a long history of cultural cross-influences regarding their construction and usage.
The first documented use of the German word is in a payment recorded in the 1527 accounts ledger of Saint Urban's Abbey in Pfaffnau. Swiss naturalist Conrad Gessner used the words for the first known detailed description of the alphorn, in his De raris et admirandis herbis (1555); in his time, the word lituus was used for several other wind instruments, like the horn, crumhorn, or cornett.
In the early 17th century, music scholar Michael Praetorius in his treatise Syntagma Musicum (1614–1620) depicts an alphorn-like instrument he called a ("wooden trumpet"), noting they are used by shepherds.
From the 17th to 19th century, alphorns were used in rural areas of the Alps, for signalling between high pastures across the valleys and to communities on the valley floor. The alphorn sounds can carry for several kilometres, and were even used to collect together dispersed herds. Although use by herdsmen had waned by the early 19th century, a revival of interest in the musical qualities of the instrument followed by the end of the century, and the alphorn became important in tourism, and inspired Romantic composers such as Beethoven and Gustav Mahler to add alphorn, or traditional alphorn melodies, to their pieces. |
Alphorn | Construction and qualities | Construction and qualities
thumb|upright|Alphorn bell detail
The alphorn is carved from solid softwood, usually pine or spruce. Traditionally, the alphorn maker would find a tree growing on a slope and bent at the base providing the curved shape for the bell. The long trunk would be cut in half longways, the bore hollowed out, then glued and bound back together with outer layers of stripped bark. Modern instruments are made in several sections for more convenient handling and transport, each turned and bored from solid blocks of spruce. An integrated cup-shaped mouthpiece was traditionally carved into the narrow end, while modern instruments have a separate removable mouthpiece carved from hard wood.
An alphorn made at Rigi-Kulm, Schwyz, and now in the Victoria and Albert Museum, measures in length and has a straight tube. The Swiss alphorn varies in shape according to the locality, being curved near the bell in the Bernese Oberland.
The alphorn is a simple tube with no lateral openings or means of adjusting the pitch, so only the notes of the natural harmonic series are available. As with other natural labrosones, some of the notes do not correspond to the Western equal tempered chromatic scale, particularly the 7th and 11th partials.
thumb|center|600px
Accomplished alphornists can command a range of nearly three octaves, consisting of the 2nd through the 16th partials. The availability of the higher tones is due in part to the relatively small diameter of the bore of the mouthpiece and tubing in relation to the overall length of the horn.
The well-known "Ranz des Vaches" (score; audio) is a traditional Swiss melody often heard on the alphorn. The song describes the time of bringing the cows to the high country at milk making time. Rossini introduced the "Ranz des Vaches" into his masterpiece William Tell, along with many other melodies scattered throughout the opera in vocal and instrumental parts that are well-suited to the alphorn. Brahms wrote to Clara Schumann that the inspiration for the dramatic entry of the horn in the introduction to the last movement of his First Symphony was an alphorn melody he heard while vacationing in the Rigi area of Switzerland. For Clara's birthday in 1868 Brahms sent her a greeting that was to be sung with the melody. |
Alphorn | Repertoire | Repertoire
thumb|The military band of the French Chasseurs Alpins uses alphorns
thumb|Grindelwald Alphorn players
Among music composed for the alphorn:
Concerto Grosso No. 1 (2013) for four alphorns and orchestra by Georg Friedrich Haas
Sinfonia pastorale for corno pastoriccio in G (alphorn) and string orchestra (1755) by Leopold Mozart
Concerto for alphorn and orchestra (1970) by Jean Daetwyler
Concerto No. 2 for alphorn (with flute, string orchestra and percussion) (1983) by Daetwyler
Dialogue with Nature for alphorn, flute, and orchestra by Daetwyler
Super Alpen King for three alphorns and orchestra by Ghislain Muller (2001) VSP orkestra / Arkady Shilkloper, Renaud Leipp
Concertino rustico (1977) by Ferenc Farkas
Begegnung for three alphorns and concert band, by Kurt Gable.
Säumerweg-Blues (audio played by Kurt Ott) among many compositions by Hans-Jürg Sommer, Alphorn Musik
Messe for alphorn and choir by Franz Schüssele Alphorn-Center
Erbauliche Studie für 12 Alphörner in Abwesenheit von Bergen by Mathias Rüegg (1998)
Wolf Music: Tapio for alphorn and echoing instruments (2003) by R. Murray Schafer
Le Berger fantaisiste for three alphorns and orchestra by Ghislain Muller, Arkady Shilkloper, Renaud Leipp, Serge Haessler, VSP orkestra (2001)
Bob Downes & The Alphorn Brothers (2015) by Bob Downes Open Music (CD rec. 2004)
Concerto for alphorn in F and orchestra by Daniel Schnyder (2004)
Matterhorn (a prelude for alphorn and wind orchestra) by Robert Litton (2013)
Alpine Trail for alphorn and orchestra by Arkady Shilkloper
Alpine Sketch" for alphorn and big band by Arkady Shilkloper
Lai nair for alphorn and contrabass by John Wolf Brennan (2015)
Der Bergschuh for alphorn and marching band by Daniel Schnyder
Crested Butte Mountain for alphorn and wind band (or brass sextet, strings, or horn septet) by Arkady Shilkloper
Robin for alphorn and wind band (big band) by Arkady Shilkloper
Fanfare for four alphorns by Arkady Shilkloper
Tanz der Kuhe by Carlo Brunner/Lisa Stoll
In popular culture
The alphorn is prominently featured in advertisements for Ricola cough drops.
See also
Bucium, a type of alphorn used by mountain dwellers in Romania
Didgeridoo, an instrument of Aboriginal Australian origins, traditionally made from a hollowed out eucalyptus tree trunk
Erke, a similar instrument of Argentine Northwest
Kuhreihen, a type of melody played on an alphorn
Tiba, wind instrument made of wood or metal that originates in the Grisons canton; it was used by shepherds on alpine meadows in the Alps
Tibetan horn, long trumpet or horn used in Tibetan Buddhist and Mongolian buddhist ceremonies
Trembita, a Carpathian alpine horn made of wood
Trutruca, wind instrument played mainly amongst the Mapuche people of Chile and Argentina; produces a sound that is loud and severe, with few tonal variations
References
Further reading
Bachmann-Geiser, Brigitte, Das Alphorn: Vom Lock- zum Rockinstrument. Paul Haupt, Berne, 1999.
Franz Schüssele, Alphorn und Hirtenhorn in Europa'', book and CD with 63 sound samples available at Alphorn-Center, |
Alphorn | External links | External links
Third Annual North American Alphorn Retreat
Alphorn in concert Concert and composition contest taking place annually in Oensingen, Canton Solothurn, Switzerland
International Alphorn Festival at Nendaz, Canton Valais, Switzerland
VSP orkestra & Arkady Shilkloper alphorn jazz & improvisations, composer / arranger : Ghislain Muller, Arkady Shilkloper, Pascal Beck
Category:National symbols of Switzerland
Category:Swiss musical instruments
Category:Natural horns and trumpets |
Alphorn | Table of Content | Short description, History, Construction and qualities, Repertoire, External links |
Army | short description | thumb|Azerbaijan Army soldiers at a 2020 parade
thumb|Indian Army soldiers on parade in 2014
An army,(from Old French armee, itself derived from the Latin verb armāre, meaning "to arm", and related to the Latin noun arma, meaning "arms" or "weapons") ground force or land force is an armed force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by possessing an army aviation component. Within a national military force, the word army may also mean a field army. |
Army | Definition | Definition
In some countries, such as France and China, the term "army", especially in its plural form "armies", has the broader meaning of armed forces as a whole, while retaining the colloquial sense of land forces. To differentiate the colloquial army from the formal concept of military force, the term is qualified, for example in France the land force is called , meaning Land Army, and the air and space force is called , meaning Air and Space Army. The naval force, although not using the term "army", is also included in the broad sense of the term "armies" — thus the French Navy is an integral component of the collective French Armies (French Armed Forces) under the Ministry of the Armies. A similar pattern is seen in China, with the People's Liberation Army (PLA) being the overall military, the land force being the PLA Ground Force, and so forth for the PLA Air Force, the PLA Navy, and other branches.
Though by convention, irregular military is understood in contrast to regular armies which grew slowly from personal bodyguards or elite militia. Regular in this case refers to standardized doctrines, uniforms, organizations, etc. Regular military can also refer to full-time status (standing army), versus reserve or part-time personnel. Other distinctions may separate statutory forces (established under laws such as the National Defence Act), from de facto "non-statutory" forces such as some guerrilla and revolutionary armies. |
Army | Structure | Structure
Armies are always divided into various specialties, according to the mission, role, and training of individual units, and sometimes individual soldiers within a unit.
Some of the groupings common to all armies include the following:
Infantry
Armoured corps
Artillery corps
Signal corps
Special forces
Military police
Medical corps |
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