Braille is a tactile writing system used by people who are blind or visually impaired. It is traditionally written with embossed paper. Braille users can read computer screens and other electronic supports thanks to refreshable braille displays. They can write braille with the original slate and stylus or type it on a braille writer, such as a portable braille notetaker or computer that prints with a braille embosser. 

Braille is named after its creator, Louis Braille, a Frenchman who lost his sight as a result of a childhood accident. In 1824, at age 15, he developed a code for the French alphabet as an improvement on night writing. He published his system, which subsequently included musical notation, in 1829. The second revision, published in 1837, was the first binary form of writing developed in the modern era. 

Braille characters are rectangular blocks called "cells" containing tiny bumps called "raised dots". The number and arrangement of these dots distinguish one character from another. Since the various braille alphabets originated as transcription codes for printed writing, the mappings (sets of character designations) vary from language to language. Furthermore, in English Braille there are three levels of encoding: Grade 1 – a letter-by-letter transcription used for basic literacy; Grade 2 – an addition of abbreviations and contractions; and Grade 3 – various non-standardized personal shorthands. QUESTIONS:

Q1:
1. Who invented the Braille system?
2. Who was responsible for coming up with Braille?
3. What was the name of Braille's inventor?
Q2:
1. Is Louis Braille's system of writing named for him?
2. Does Louis Braille's writing system bear his name?
3. Is Braille named for the person who invented it?
Q3:
1. In what year was Louis Braille attempting to improve night writing?
2. When was Louis Braille trying to make improvements to writing at night?
3. What was the year when Louis Braille was tinkering with night writing?
Q4:
1. What did Louis Braille's code represent?
2. What was the meaning of Louis Braille's code?
3. What was the significance of the code Louis Braille developed?
Q5:
1. How old was Louis Braille in 1824?
2. At what age did Louis Braille improve upon night writing?
3. What was Louis Braille's age in 1824?
Q6:
1. 
2. 
3. 
Q7:
1. What came out in 1937?
2. What publication was made available in 1937?
3. What did 1937 see the publication of?
Q8:
1. Did Louis Braille create the first form of something?
2. Did Louis Braille do something for the first time?
3. Was Louis Braille's system the first of something?
Q9:
1. What period did Louis Braille make a novel advancement in?
2. When did Louis Braille make the first of something?
3. Braille made the first binary writing system developed during what period?
Q10:
1. Who uses the braille system?
2. The Braille system is intended for use by what population?
3. Who is served by the Braille system?
