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TIL that the Aztec Empire was one of the first societies to have mandatory education for all children regardless of gender or rank.

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Brgry TIL of Hyperloop, a new type of transportation using electric propulsion through a low-pressure tube to move people and freight up to 670 mph or 1080 kph.
6RVQ TIL that the average age of NASA engineers at the time of Apollo 11 was 28. Nowadays it’s 47
wL18o TIL that Charles Darwin's iconic Tree of Life sketch is missing presumed stolen from Cambridge University Library.
0d07A TIL Brooklyn's Cobble Hill Tunnel is the oldest subway tunnel in the world. It was closed in 1861 and forgotten for over 100 years. In 1980 it was rediscovered by a local college dropout named Bob Diamond.
Br8pK TIL John Tyler, the tenth president of the United States, has two living grandchildren. John Tyler was 63 when his son Lyon was born (1853). Lyon was 71 when Lyon Jr. was born (1924) and 75 when Harrison was born (1928). They are both alive today.