Doug Engelbart invents innovative control devices like the mouse and chord keyboard. His intention: augmenting the human intellect. ▶
Ben Shneiderman invents an area-dividing notation for computer programs that exploits properties of structured programming and encourages top-down design. ▶
Ward Cunningham creates an interactive editor for Ben's notation on an Imlac PDS-1 computer using Doug's control devices. The experience informs all his future work. ▶
This site openly exhibits both Ward's program and the tools used to restore it. The hope is that other programs will become similarly available. ▶