Louis Braille lost his sight at age three after an accident with his father's awl in the family's leatherworking shop. By fifteen, drawing on a rudimentary night-writing code developed for military use, he had devised the system of raised dots that would eventually give blind people worldwide access to independent reading and writing, a system still in use essentially unchanged nearly two centuries later.
The accident that blinded Louis Braille was almost absurdly small in its immediate scope: a punch, called an awl, slipped while the three-year-old was playing in his father's harness-making workshop, piercing his eye. Infection spread to the other eye, and within a couple of years, Braille was completely blind.
Sent to the Royal Institute for Blind Youth in Paris, Braille encountered books with raised letters that were bulky, slow to read, and nearly impossible to write. He also learned of a system called night writing, invented by a French army captain named Charles Barbier for soldiers to communicate silently and without light on the battlefield, using raised dots rather than embossed letters.
Braille, still a teenager, saw the potential and spent years refining Barbier's clumsy twelve-dot cells into an elegant six-dot system that could represent every letter, punctuation mark, and eventually numbers and musical notation, all readable by a single fingertip without needing to shift position. He published his system in 1829, expanded it in 1837, but died in 1852 without seeing it widely adopted; the French educational establishment did not officially embrace it until two years after his death. Today, Braille's six-dot cell remains essentially unchanged, a rare example of a teenage inventor's work outliving every rival system devised by adults.
Key people: Louis Braille