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TIL Like an outsized fossil in the Sahara, the 30-mile diameter Richat Structure in Mauritania, originally interpreted as a meteorite impact, is a circular, eroded dome dating back to the splitting of Pangea.

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x7b7 TIL That Arnold Schwarzenegger has killed 509 people on screen throughout his entire career as an actor- and the “White Death”, Simo Häyhä, the sniper with the most confirmed kills in any major war, has killed only FOUR FEWER real people.
BroxK TIL In 1877 Frederick Douglass purchased close to ten acres of farmland and a mansion on the outskirts of the city of Washington in order to settle in the village of Anacostia. His final residence of Cedar Hill is seen as a metaphor for his life, signifying the heights that he rose to
Bggge TIL that amphetamines' first clinical use was to relieve nasal congestion, under the trade name Benzedrine in 1934. It is now used in the treatment of ADHD and narcolepsy among other uses.
Eg4kd TIL the first traffic signal, erected in London in 1868, was powered by gas. A gas leak caused it to explode a month later.
VB10m TIL how a shipping error 100 years ago launched the $30 billion chicken industry