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TIL the boundary between the Earth's atmosphere and outer space is called the Kármán line

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j6JBa TIL Daylight Saving Time (DST) was first used in 1908 in Port Arthur, Ontario (today's Thunder Bay). While Germany and Austria were the first countries to use DST in 1916, a few hundred Canadians beat the German Empire by eight years.
YpWg7 TIL that two straight men got married to avoid paying higher taxes
ADKwx TIL that the first known interstellar object detected passing through our Solar System is an asteroid called ʻOumuamua, found in 2017. It's a rocky, cigar-shaped object tumbling through space and it required a new astronomical designation: I, for Interstellar object. ʻOumuamua is designated "1I".
YpaLZ TIL The richest person in Hong Kong is a high school dropout who first started a plastic flower company in 1950
8bAZ TIL that as of 2015, Iceland is the most peaceful nation in the world. Additionally, the literacy rate is 99% among all Icelanders and the incarceration rate is 47 prisoners per 100,000 people.