
Braille was first developed about 1820 by a young Frenchman named Louis Braille. He created Braille by modifying a system of night writing which was intended for use on board ships. He did this work as a very young man and had it complete by the time he was about 18. He and his friends at the school for the blind found that reading and writing dots was much faster than reading raised print letters which could not be written by hand at all. The development of this system by young Louis Braille is now recognized as the most important single development in making it possible for the blind to get a good education.
It took more than a century, however, before people would accept Braille as an excellent way for the blind to read and write. Even today many people underestimate the effectiveness of Braille. While tapes and records are enjoyable, Braille is essential for note taking and helpful for studying such things as math, spelling, and foreign languages.
Experienced Braille readers, however, read Braille at speeds comparable to print readers--200 to 400 words a minute. Such Braille readers say that the only limitation of Braille is that there isn't enough material available.
Braille consists of arrangements of dots which make up letters of the alphabet, numbers and punctuation marks. The basic Braille symbol is called the Braille cell see Figure 1 and consists of six dots arranged in the formation of a rectangle, three dots high and two across. Other symbols consist of only some of these six dots. The six dots are commonly referred to by number according to their position in the cell.

There are no different symbols for capital letters in Braille. Capitalization is accomplished by placing a dot 6 in the cell just before the letter that is capitalized. The first ten letters of the alphabet are used to make numbers. These are preceded by a number sign which is dots 3-4-5-6. Thus, 1 is number sign a; 2 is number sign b; 10 is number sign a-j and 193 is number sign a-I-c.



Some abbreviations are used in standard American Braille in order to reduce its bulk. These must be memorized, but most Braille readers and writers find them convenient, rather than a problem. Braille is written on heavy paper, and the raised dots prevent the pages from lying smoothly together as they would in a print book. Therefore, Braille books are quite bulky.
A Braille writing machine as in Figure 2 (comparable to a typewriter) has a keyboard of only six keys and a space bar, instead of one key for each letter of the alphabet. These keys can be pushed separately or altogether. If they are all pushed at the same time they will cause six dots to be raised on the paper in the formation of a Braille cell. Pushing various combinations of the keys on the Braille writer produces different letters of the alphabet and other Braille symbols.

Writing Braille with a slate and stylus compares to writing print with a pen and pencil. The stylus is used to push dots down through the paper, while the slate serves as a guide. The Braille slate in Figure 3 can be made of metal or plastic and is hinged so that there is a guide under the paper and on top of it. A person writing Braille with the slate and stylus begins at the right side of the paper and ends the line on the left, since the dots are being produced on the underside of the paper. The Braille reader reads from left to right, for the dots are then on the top side of the paper. Although this may seem a bit confusing, it need not be at all troublesome, since both reading and writing progress through words and sentences from beginning to end in the same manner. The speed of writing Braille with the slate and stylus is about the same as the speed of writing print with pen or pencil.

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