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Rather than getting angry at us, hearing people can type text on their phones, try a speech-to-text transcription app or learn the ASL manual alphabet for basic exchanges, use gestures, or employ pen and paper.

The manual alphabet was then published as an an illustration in popular author Daniel Defoe's book about a deaf man, The History of the Life and Adventures of Mr Duncan Campbell, from 1720.

The manual alphabet, or fingerspelling, is thought by some to have been invented by monks in the 8th Century who had taken a vow of silence and needed another way of communicating.

When Anna knew how to read and understand about forty substantives, I taught her the manual alphabet, and from that moment I could test her knowledge with unfailing exactitude.

Amman says that Van Helmont had discovered a manual alphabet and used it to instruct the deaf, but had not attained very good results.