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TIL Conrad Heyer, born in 1749, is the earliest-born person to ever be photographed. He served as a soldier under George Washington's army.

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LQ1LP TIL the style of constellation diagrams used in most modern astronomy guides was invented by Curious George author H. A. Ray
yaoJ TIL there is a genetic defect among Fruit Flies that cause them to die within two days. Its discoverer named the defect “Kenny” after the character in South Park.
a8k8A TIL there’s an album of 27 songs, one for each of the 27 Amendments to the U.S. Constitution
NwLN TIL male trees lacking a female mate are often responsible for allergies (the equivalency of “blue balls” in animals, except with super pollination)
jAZa TIL Mozilla Foundation did a study of Googles Incognito Browser. They found it was used for an average of 10 minutes from the hours of 11pm to 5am, peaking at 2 am.