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TIL that Robert Ballard's discovery of the Titanic in 1985 was actually a by product. The expedition which found the wreck was funded by the US government to study the effects of radiation from two US Navy submarines which had sunk in the 1960s. The Titanic search was a cover.

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W7LMo TIL that Terry Crews is a very talented illustrator. He apparently had an art scholarship before he had a football scholarship.
OomX TIL that some anthropologists believe high heels are sexy because it simulates the arched back posture animals naturally show when mating.
57pn TIL in 1963, JFK suggested cancelling Apollo in favor of a joint US-Soviet mission to the moon.
b9Xa9 TIL that Margaret Mitchell's husband said to her "For God's sake, Peggy, can't you write a book instead of reading thousands of them?" She went on to write "Gone with the Wind."
neMKG TIL that phone numbers with more than seven digits (E.G. +1 (800) ACCIDENT) Are registered as seven digits. Example: Calling 1 800 PROGRESSIVE is the same as calling 1 800 PROGRES.