Louis Braille http://en.wikipedia.org/wiki/Louis_Braille
Louis Braille http://en.wikipedia.org/wiki/Stitching_awl
http://www.biografiasyvidas.com/especial/educacion/llorens.htm http://en.wikipedia.org/wiki/Napoleon_I_of_France Charles Barbier Napoleon
t (4, 2) "Ecriture Nocturne" (night writing) http://en.wikipedia.org/wiki/Charles_Barbier
t (4, 2) "Ecriture Nocturne" (night writing) http://en.wikipedia.org/wiki/Charles_Barbier Base-1 ??
L'INSTITUT NATIONAL DES JEUNES AVEUGLES ET LA MUSIQUE http://www.musimem.com/INJA.htm 1821
http://en.wikipedia.org/wiki/Stitching_awl Louis Braille began to invent his raised-dot system with his father's stitching awl, the same implement with which he had blinded himself, completing it at age 15, in 1824.