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TIL According to a 2009 study, the oldest words in the English language include “I“, “we“, “who“, “two” and “three“, all of which date back tens of thousands of years. The discovery was made by tracking the divergence of ancestral words into different languages with an IBM supercomputer.

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oRWRY TIL There is water on the moon! This is the form of ice trapped within dust and minerals on/under the surface. It has been detected on areas of the lunar surface that are in permanent shadow and are very cold, enabling the ice to survive. This was likely delivered to the surface by comets.
rRYm1 TIL smokers who quit before 40 were found to live just as long as non-smokers. The average smoker who doesn't stop will lose 10 years on their life. A smoker who stops between the age of 35 and 40 can regain 9 of those years. Older smokers gained back 6 of those years.
aVAL TIL that there is an ethnic group called the “asian pygmies” that are intentionally going extinct to prevent the passing of their many birth defects.
Bg0x TIL Kim Jong-Il once rounded up all the short people in Pyongyang and sent them away to uninhabited islands “to end their ‘substandard’ genes from repeating in a new generation”.
XegQ TIL 2,000 year-old seeds were discovered in Israel around 1965 to be held in storage for the next 40 years. After they were planted, a tree that has been extinct for 1,800 years sprouted.