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TIL The phrase "mad as a hatter" originated in the hat making industry of the 18th century as mercury nitrate was a vital substance used in the production process. This lead to a variety of physical and mental ailments, including tremors (“hatter’s shakes”), speech problems, emotional instabilities.

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a5ao TIL that the US helped France improve its nuclear weapons. Since US law prevents sharing atomic-bomb information, France and the US used a method called “negative guidance” or “Twenty Questions”; French scientists described to Americans their research, and were told whether they were correct.
Zp7gB TIL of The Bachelor of Powalgarh, an exceptionally large, man-eating Indian Bengal tiger, which was sought after and eventually shot and killed by Jim Corbett in 1930. The tiger was 10 feet 7 inches long
Y7keG TIL Paul McCartney agreed to join the board of organizers of the 1967 Monterey Pop Festival on the condition that the Jimi Hendrix Experience be invited to perform. They were invited and Jimi ended his performance by lighting his guitar on fire, immediately making him a rock legend.
woYYo TIL that in 1947, U.S. House Minority Leader Sam Rayburn was gifted a 1947 Cadillac Fleetwood Series 62 from 142 Democratic congressmembers and 50 Republican congressmembers. Each congressmen donated $25 to circumvent Rayburns personal rule of not accepting gifts more than $25.
78yg7 TIL that eminem is first rapper to reach 50 million pure album sales.Physical albums sold, excluding digital downloads and streaming.