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TIL that near St Louis there is the remains of a huge Native American city. The civilization that lived in the city built a giant mound larger at its base than the Great Pyramid of Khufu, Egypt’s largest

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NXbNJ TIL that in the UK, income tax remained controversial until well into the 20th century as it was viewed as an intrusion on privacy. The window tax was introduced as a way to tax in proportion to wealth, but without the controversy. More windows on your house meant higher taxes.
m9VP TIL that long ago, people chewed on tree bark as a method of pain relief. Willow bark has a high amount of salicylic acid, an ingredient still used in aspirin today.
woOgY TIL that the Pop-It bubble popper was originally invented in 1975 by Theo and Ora Coster of Theora Concepts: a married Israeli couple who had invented many games including Guess Who? and Zingo!. Incidentally, Theo was a former classmate of Anne Frank.
g9X9 TIL Frank Zappa was so astounded by the success of his song ‘Bobby Brown’ in Scandinavia that he wanted CBS to hire an anthropologist to study why the song became such a big hit.
M7rRa TIL a typical camel can drink 53 gallons (200 liters) of water in three minutes.