This proto-writing system was limited to representing a relatively narrow range of ideas with a comparatively small library of symbols. This compelled innovations that allowed for symbols which indicated elements of spoken language directly. In each historical case, this was accomplished by some form of the rebus technique, where the symbol for a word is used to indicate a different word with a similar pronunciation, depending on context. This allowed for words that lacked a plausible pictographic representation to be written down for the first time. This technique preempted more sophisticated methods of character creation that would further expand the lexicon. The process whereby writing emerged from proto-writing took place over a long period; when the purely pictorial use of symbols disappeared, leaving only those representing spoken words, the process was complete.
This proto-writing system was limited to representing a relatively narrow range of ideas with a comparatively small library of symbols. This compelled innovations that allowed for symbols which indicated elements of spoken language directly. In each historical case, this was accomplished by some form of the rebus technique, where the symbol for a word is used to indicate a different word with a similar pronunciation, depending on context. This allowed for words that lacked a plausible pictographic representation to be written down for the first time. This technique preempted more sophisticated methods of character creation that would further expand the lexicon. The process whereby writing emerged from proto-writing took place over a long period; when the purely pictorial use of symbols disappeared, leaving only those representin,g spoken words the process was complete.