On this day:
1984:The Apple Macintosh computer goes on sale. The “Mac” was the first commercially successful personal computer using a graphical user interface and a mouse.
1857: University of Calcutta founded as the first full-fledged university in South Asia.
2004: Opportunity’s Mars landing: Launched in mid-2003, the six-wheeled robotic rover Opportunity landed on Mars this day.

Born on this day:
1862: Edith Wharton: American Writer

Gone on this day:
1965 Winston Churchill: English politician, Prime Minister of the United Kingdom, Nobel Prize laureate
1989: Ted Bundy, American serial killer