How did Louis Braille change the world?

Brailles work made it possible for blind persons to read and understand many things through those magical little dots.

Also, Braille changed sooo many lives, because not only could you read, but you could get a job, read mathematics, science, and so much more! Back then, if you were blind, you didn't HAVE a life, the only thing you could do to make money was by entertaining people, and make a living from that.