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TIL that although GPS (Global Positioning Satellite) is free for the world to use, it costs the American taxpayer $2 million per day to operate.

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9YQjQ TIL a Black Robin named Old Blue has become the mother of her entire species when she was the last fertile female in a group of 5 Robins. There are now 250 Black Robins on the Chatham Islands, and have raised their status from Critically Endangered to Endangered.
VBwkG TIL: Shakespeare and Dickens both used the phrase “Dead as a Doornail” in their work. Nails were handmade, super-valuable and often re-used. Doornails were “dead” because they were bent over like staples, making them unable to be used again.
b9nD4 TIL When Queen Elizabeth delivers a speech in Parliament, a member of the House of Commons is kept hostage at Buckingham Palace. The hostage is released when the Queen safely returns.
n69P TIL Even though golf is the 7th most popular sport in the US, the PGA Tour has donated over $2 billion to charity. By comparison, the NFL has donated about $370 million to charity.
69y4J TIL that the University of Iowa’s mascot, the Hawkeye, is inspired by the character Hawkeye from James Fenimore Cooper’s The Last of the Mohicans. The name also pays tribute to Chief Black Hawk, a prominent Native American leader who spent his final years in Iowa and is buried there.