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" Perhaps you’re reading this book with your phone by your side, checking your email whenever your attention drifts, tapping text messages to a friend. You sit at the end of a long line of inventions that might never have existed but for people with disabilities: the keyboard on your phone, the telecommunications lines it connects with, the inner workings of email. In 1808, Pellegrino Turri built the first typewriter so that his blind lover, Countess Carolina Fantoni da Fivizzano, could write letters more legibly. In 1872, Alexander Graham Bell invented the telephone to support his work helping the deaf. And in 1972, Vint Cerf programmed the first email protocols for the nascent internet. He believed fervently in the power of electronic letters, because electronic messaging was the best way to communicate with his wife, who was deaf, while he was at work. "
― , User Friendly: How the Hidden Rules of Design Are Changing the Way We Live, Work, and Play
