Louis Braille, a Frenchman, couldn’t see anything when he was three years old. At the age of ten, he went to a special school for b_______ children. The teacher there taught him a new way of reading by touching raised letters(突出的字母) on the paper. H______, it was a slow way to read, and it did not help the blind to write. In 1819, a French soldier i__________ a special writing called “night writing”. Night writing used twelve dots(小圆点). In 1824, Braille k__ about the night writing and began to change it for the blind to use. He didn’t use 12 dots but 6 dots. Letters are made with one or m______ dots. In this way, Braille was able to use the six dots for all twenty-six letters. Now people call this writing the “Braille Writing” and people first used it in 1829. His work helped the blind see the world through their fingers.