User contributions
- 12:13, 6 April 2015 (diff | hist) . . (-4) . . 1508: Operating Systems (typo...)
- 12:09, 6 April 2015 (diff | hist) . . (+486) . . 1508: Operating Systems (There is another possible interpretation of the last event on the timeline, that of Elon Musk's and other tech pundits' predictions that a superintelligent AI will end all life on earth.)