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TIL in the 1800s, there were about 50,000 grizzly bears in North America, spread across a wide swath of the western half of the continent from Canada to Mexico.

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ype TIL that every natural number less than 10^126 is nameable.
nWwxG TIL that traditional Japanese sword forging techniques produced a uniquely layered steel microstructure that was key to the legendary balance of sharpness and resilience in samurai swords
LkYKV TIL over Newgrange, a prehistoric tomb in Ireland. It is pitch dark in the tomb the whole year, except for 15 min around Dec 21, when sunlight illuminates the niche in the front.
W7Nr8 TIL that Pepsi and Coca-Cola have been involved in a "Cola War" since the 1970s. It came to a head during Super Bowl LIII in Atlanta, where Coca-Cola's HQ is, when Pepsi was one of the main sponsors and ran a campaign with the slogan "Hey Atlanta, Thanks for Hosting. We'll Bring the Drinks."
8eXXb TIL that Katherine Hepburn was a passionate and skilled golfer, and once reached the semi-finals of the Connecticut Young Women’s Championship.