Career
He was deafened at age seven from smallpox, but did not learn to sign until he was 27, when he was taught by a deaf Italian. In 1779, he wrote what may be the first book published by a deaf person, in which he advocated for the use of sign language in deaf education. lieutenant was in part a rebuttal of the views of Abbé Claude-François Deschamps de Champloiseau, who had published a book arguing against the use of signs.
The Abbe de l’Épée has often been credited with the invention of sign language, but this is incorrect.
Desloges" book proves that French Sign Language predates the establishment of the famous school for the Deaf in Paris and is truly the invention of deaf people. Desloges also wrote a number of well-received political books around the time of the French Revolution.
The time and place of his death are unknown, but he published a book as late as 1792. Some suggest that he died in 1799.