When Was the Sign Language for Deaf-mutes Invented?
When Was the Sign Language for Deaf-mutes Invented? One of the earliest written records of a sign language is from the fifth century BC, in Plato’s Cratylus,...
Read MoreWhen Was the Sign Language for Deaf-mutes Invented? One of the earliest written records of a sign language is from the fifth century BC, in Plato’s Cratylus,...
Read MoreWho Invented Alphabets? One of the earliest forms of the alphabet was hieroglyphics. Hieroglyphics were single symbols that stood for entire words. Thousands of...
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