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TIL in 1942, 25 US marines landed on Japanese territory to survey an airfield. After being surrounded by the Japanese, they held a defensive perimeter for 9 hours before being overrun. Eventually, the only surviving marine swam through 4 miles of shark-infested waters to return to Allied lines.

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PYWOg TIL the human foot is one of the heaviest sweat producers on the body and contains 250,000 sweat glands. However, these eccrine glands produce sweat of mostly water and salt meant to cool you, and it has very little odor on its own.
XE5Ak TIL hippopotamus can defecate so much in the water they're in, that fish start to die because the bacteria in the hippo's feces use up the majority of the oxygen contained in the river.
JYbjB TIL That Queen Victoria used to take cocaine and once took the drug with Winston Churchill when he was young.
V7lZ TIL a 2004 study of 43 fruits and vegetables found that their nutritional value has decreased significantly over the past 50 years.
KOPA9 TIL George Washington, John Adams, and Thomas Jefferson brought their own books to the White House and removed them at the end of their terms. It was not until 1850 that Millard and Abigail Fillmore established the first official White House collection