Braille empowers blind people to read by touch

Braille is a tactile writing system that uses raised dots to represent letters, numbers, and punctuation, allowing blind and visually impaired people to read and write. Invented by Louis Braille in 1824 when he was just 15, this system uses cells with up to six dots in a 2x3 grid, where each unique pattern corresponds to a character. For example, a single top-left dot means 'a'.