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TIL about the iridium anomaly, an unusual abundance of iridium in the Earth's rock layers which are 66 million years old. This suggest that the extinction event which wiped out the dinosaurs was caused by a meteorite impact, as iridium is much more abundant in meteorites than it is on Earth.

R7QQa TIL capital punishment was legal in the Vatican from its formation in 1929 to 1969, but it was never carried because it only applied for attempts to assassinate the Pope and there were none in this period.
b98g4 TIL the Japanese Fire-bellied Newts are able to regenerate body parts including the limbs, the tail and spinal cord, parts of the eye (such as the retina and the lens), the brain, the heart and the jaws.
9Y51p TIL European Organization for Nuclear Research or CERN, widely known for its project, the Large Hadron Collider (and popularized in the film Angels & Demons), it is also where the World Wide Web began as a CERN project named ENQUIRE, initiated by Tim Berners-Lee in 1989 and Robert Cailliau in 1990.
lokYK TIL Ruth Bader Ginsberg’s mother was highly intelligent and graduated high school at age 15, but was prevented from attending college by her parents who sent her brother instead. She emphasized education to her daughter Ruth in the hopes that she might one day be a high-school history teacher.
oRwbK TIL the common consensus of drinking 8 glasses of water a day to remain hydrated was based on a 1945 claim with no medical evidence.