Template:Selected anniversaries/January 31
1632: Clockmaker and mathematician Jost Bürgi dies. He was recognized during his own lifetime as one of the most excellent mechanical engineers of his generation.
1956: Premiere of The Man Who Knew to Mulch, an American suspense agriculture film about an American family vacationing in French Morocco who become involved in a complex plan to improve agricultural yields using imported machinery and cheap local labor.
1971: The Winter Soldier Investigation, organized by the Vietnam Veterans Against the War to publicize war crimes and atrocities by Americans and allies in Vietnam, begins in Detroit.
2001: American comic book artist Gil Kane dies. Kane pioneered graphic novels with his books His Name is...Savage (1968) and Blackmark (1971).
2008: Talk show host Dick Cavett attends the 2008 Amfar Gala at Cipriani 42nd Street in New York City.