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TIL In 1490 a meteor shower in China killed 20,000 people.

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yxbw TIL there is a cognitive bias called The IKEA effect. People put a higher value on things they have made themselves.
lEmA TIL Congress added the “Under God” phrase to the Pledge of Allegiance during the Cold War. This symbolized the resistance to communists, who were atheists.
l7onV TIL That episiotomies, the intentional incision of the perineum during childbirth, was once considered routine. In the late 1970's, it was done in more than 60% of vaginal births. The procedure was discouraged by leading OBGYN groups in the 2000's, but still sometimes occurs.
Vlx4 TIL India’s richest person, Mukesh Ambani, built a $1 billion home. It has 27 habitable floors, including six parking floors for capacity of up to 168 cars. A staff of 600 maintain the home.
b60W0 TIL the chemical formula of trisodium citrate is Na3C6H5O7 and is the additive that causes cheese to liquify without separation