Understanding the origins and the evolution of Vi and Vim
Inspired by a previous port of Stevie for the Commodore Amiga, Bram Moolenaar began working on Vim for the Amiga in 1988.
Yes, you read that right... Vim was originally developed for the Commodore Amiga! I'm always surprised to see that not many programmers know that, including those that use Vim daily.
I had no idea that Vim started on the Amiga, and I doubt many people do.