Chorded keyboard (a writing system for the blind) uses either 6 or 8 tactile 'points' from which all letters and numbers are formed. When Louis Braille invented it, it was produced with a needle holing successively all needed points in a cardboard sheet. In 1892, Frank Haven Hall, superintendent of the Illinois Institute for the Education of the Blind, created the Hall Braille Writer, which was like a typewriter with 6 keys, one for each dot in a braille cell. The Perkins Brailler, first manufactured in 1951, uses a 6-key chord keyboard (plus a spacebar) to produce braille output, and has been
The Blind Leading the Blind the six blind men: to accomplish a realistic portrayal, Bruegel repeatedly has the men cross a bridge and fall into a creek in midwinter until their expressions achieve the desolation Bruegel believes represents the human condition. A 1987 historical novel "Bruegel, or the Workshop of Dreams" by has Bruegel painting the blind out of fear of losing his own eyesight. French comics artist F'murr's comic strip "Les Aveugles" (1991) was directly inspired by Bruegel's painting "The Blind Leading the Blind". "The Blind Leading the Blind" and "The Misanthrope" were discovered in the collection of the Count Giovanni Battista Masi of