In the year 1829, the Braille system was invented by a blind Frenchman, Louis Braille for the blind persons to read and write. It is a system of coded raised dots that are helpful to read and write for the blinds.
In the year 1829, the Braille system was invented by a blind Frenchman, Louis Braille for the blind persons to read and write. It is a system of coded raised dots that are helpful to read and write for the blinds.