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A philosipher by the name of Girolama Cardano wrote about how one could hear a sound transmitted through a shaft that is held between a person's teeth
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Giovanni Bonifacio published the first book on sign language. Of the Art of Signs
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Thomas Braidwood opens the first deaf-only school in Britain which is later closed, but then refounded in London
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Abba Silvestri founded Italy’s first deaf school in Rome
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Jean Marie Gaspard Itard develops a hearing device that is basically a giant toothpick the user holds in between their teeth and the person talking to them holds the other end between their teeth.
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A scientist named Enoch Currier invented a device called the Duplex earpiece, a hearing device that uses a tube with two bells at the end so that the user can hear his/her own voice as well as their teacher
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Siemens wass the first company to start manufacturing hearing aids in this year
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In 1991 in Denmark, Oticon, now the world's second largest hearing aid manufacturer, released the first automatic hearing aid complete with volume control. It was called the MultiFocus
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Oticon releases the Delta, the first reciever-in-the-ear hearing aid the world has ever seen.
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Flutter, a dress with many robotic flaps on it, uses robotics to move the flaps so that sound about your auditory envioronment are delivered to your ears.
