Understanding the Origins and the Evolution of Vi & Vim
pikuma.com
The history of Vi & Vim goes hand in hand with the history of open-source software. This article looks at the historical events that shaped the evolution of these text editors.

Amazing article from Gustavo Pezzi about the history of the vi editor up to vim. Did you know that vim was first developed for the Amiga? That and lots of other interesting tidbits.