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TIL: Mavis Beacon is not a real person

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via reddit.com

dD6oK TIL that since the chart’s debut in 1958, 25 primarily instrumental songs have reached No. 1 on the Billboard Hot 100, including “Star Wars Theme/Cantina Band” in 1977. Since 1985, however, the only instrumental No. 1 has been 2013’s “Harlem Shake.”
lDOr TIL during the Makahiki festival in Hawaii, the chief would go off shore in a canoe. When he came back warriors threw spears at him and he had to deflect them to prove his worthiness to rule.
5ZPp TIL a dumb hole is like a black hole, but sound waves rather than light waves are absorbed and cannot escape. A lab created one in 2009
X0wJ8 TIL about the liking gap, which is that people you meet like you more than you think. Psychologists found that "people systematically underestimated how much their conversation partners liked them and enjoyed their company."
7rmOP TIL that cheetahs are native to Asia in addition to Africa. The Asiatic cheetah is a critically endangered subspecies whose range has shrunk to Iran's central plateau. It's believed that there were fewer than 50 individuals in the wild as of 2017.