Louis Braille certainly wasn't your average teenager. Blind from the age of four, he was only fifteen when in 1824 he invented a reading system that converted printed words into columns of raised dots. Through touch, Braille opened the world of books to the sightless, and almost two hundred years later, no one has ever improved upon his simple, brilliant idea. Series Information With straightforward language and illustrations on nearly every page, the Who Was...? series invites kids to explore history by learning about key figures from politics, sports, music, literature, and more. Each book tells the story of a person's life and major accomplishments, and discusses the historic events that shaped his or her world. The books also include timelines, bibliographies, and suggestions for further research.