What year was braille first published?

"Method of Writing Words, Music and Plain Songs by Means of Dots for Use by the Blind and Arranged for Them". It was written in raised print, but it had examples of Braille in it.

The first full-length book published in Braille, "A Brief History of France", came out in 1837. There are only three copies left.

See the link below for a photo.