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TIL that H G Wells’ War of the Worlds was inspired by how the immeasurably technologically superior English massacred the natives of Tasmania, Australia in taking that land.

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8emeK TIL the mirrors on the James Webb Space Telescope are so smooth that if you stretched out the mirror to the size of the U.S., the largest bump would be no more than 2 inches
6E4bZ TIL that the entire surface of Saturn's moon, Titan, can move several kilometers per month, suggesting that there is an ocean underneath the surface.
yVQ4V TIL that a parietal eye, also known as a third eye or pineal eye, is a part of the epithalamus present in some vertebrates. The eye is located at top of the head, is photoreceptive and is associated with the pineal gland, regulating circadian rhythmicity and hormone production for thermoregulation.
1a5d TIL that on July 4, 1776, King George III wrote in his diary, “Nothing important happened today”
11EP TIL that in 1987, FBI agent Robert Hanssen was tasked by his superiors to find a mole within the agency after the FBI’s moles in the KGB were caught. In reality, he was the mole, working with the KGB since 1979.