braille is a touching system using by individual with blindness. Braille invented by Louis Braille from Franch who had blind since young. He had invent this system since he was 15 years old. Actually, he invented this system for the soldier to make them reads during blackout. But in the earlier, this system never the "w" beverages. The system braille has six sel like this:
Braille_cell.svg/155px-Braille_cell.svg images/magnify-clip
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