Later Life
In 1839, Braille published details of a method he had developed for communication with sighted people, using patterns of dots to approximate the shape of printed symbols. At the same time he gave assistance to his friend Pierre Foucault who was working on the development of a device that could emboss letters in the manner of a typewriter. Foucault's machine was hailed as a great success and was exhibited at the World's Fair in Paris in 1855.
Although Braille was admired and respected by his pupils, his writing system was not taught at the Institute during his lifetime. The successors of Valentin Haüy, who had died in 1822, showed no interest in altering the established methods of the school, and indeed, they were actively hostile to its use. Dr. Alexandre François-René Pignier, headmaster at the school, was dismissed from his post after he had a history book translated into braille.
Braille had always been a sickly child, and his condition worsened in adulthood. A persistent respiratory illness, long believed to be tuberculosis, dogged him, and by the age of forty, he was forced to relinquish his position as a teacher. When his condition reached mortal danger, he was taken back to his family home in Coupvray, where he died in 1852, two days after he had reached the age of forty-three.
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