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TIL of the Ting Hai effect, a stock market phenomenon in which there is a sudden and unexplained drop in the stock market whenever a film or a television series starring Hong Kong actor Adam Cheng is released.

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LJJv TIL Norway stopped investing money into Walmart after determining that the company is guilty of “serious violations of fundamental ethical norms.”
mx7Jo TIL some Hungarians refuse to clink beer glasses, as Austrians supposedly did this in 1849 after executing Hungarian rebels. The unofficial ban on clinking beer glasses was 150 years, but many still continue—others maintain the tradition was only popularized by winemakers trying to boost wine sales.
8yda TIL of Robert Smalls; an escaped slave who captured and sailed a Confederate ship to the Union with 8 enslaved families, including his. He was awarded today’s equivalent of $34,000 for commandeering the ship, won a seat in the House of Representatives, and purchased his former slavemaster’s house.
LQrym TIL Hetty Green, the "Witch of Wall Street," became the wealthiest woman of the early 20th century, amassing a $100M fortune (~$2.7B today) by investing in real estate, railroads, and mortgages. Green was also a miser who wore the same black dress daily, ate only oatmeal, and lived in cheap housing.
9YeMM TIL in 1896, a bubоnіc plаgue epіdеmic struck Bombay, and the government asked Waldemar Haffkine, developer of the first chоlera vаccіne, to help. After 3 months of persistent work (1 assistant had a nervous breakdown and 2 others quit), a vаccіne was ready, with Haffkine tеsting it on himself first