The Soviets bugged US Embassy and Consulate typewriters with one of the world’s first keyloggers. It was a long bit of circuitry inside a supporting bar in the typewriter, capturing text by measuring magnetic disturbance as the print head moved. This was sent by radio bursts to the Soviets.
Mark Twain wrote the very first novel that was ever written with a typewriter. That novel was Tom Sawyer.
Cormac McCarthy writes all of his books on a 1963 Lettera typewriter. In 2009, he sold his typewriter at auction for $254,500. He spent $20 to buy an identical replacement.
The standard Chinese typewriter has 1,400 characters.
The first typewriter was called the “literary piano”.