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TIL of co-founder Aaron Swartz, who believed in a free Internet when it was still possible. He died by suicide in 2013.

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9wrEG TIL The temperature on the moon at the Apollo 11 landing site was 200ºF (93ºC).
x6B15 TIL a 1995 experiment by Oberholzer et al successfully showed DNA replication inside tiny spherical lipid bilayer structures called liposomes (similar to cell membranes) - mimicing early cellular conditions. Advancing our understanding of how life could have originated.
k6JE TIL archaeologists excavating a Roman city found remains of close to 100 infants who were smothered and cast into a sewer that ran beneath a brothel. It believed infanticide was a widely used method of limiting family size in ancient Rome
EgeMX TIL Philadelphia cream cheese was created in New York
1jrD TIL Great White Sharks sometimes regurgitate a bite to make room for a more calorically-rich morsel, evidence that white sharks are adept at assessing the caloric value of their food and are selective when feeding.