Braille is a tactile writing system utilized by people who find themselves blind or visually impaired. It was invented by Louis Braille within the nineteenth century and has since turn into essentially the most broadly used tactile writing system on the earth.
Braille is made up of raised dots which can be organized in cells. Every cell comprises one to 6 dots, and the totally different preparations of dots signify totally different letters, numbers, and symbols. Braille can be utilized to jot down any language, and it is usually used for music notation and arithmetic.