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Today I learned about Frank Emmanuel Petersen Jr, the first black Marine Corp Aviator and General. Tomorrow is the anniversary of Peterson being promoted to brigadier general in 1979. The navy currently has a Arleigh-Burke class destroyer named after him the ship's motto is "Into the Tiger's Jaw!"

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JlnV TIL “UVB-76” is a mysterious Russian radio signal (on 4625 kHz). For almost 40 years a repeating buzzing sound has been broadcasted, though every very few years it stops, and a Russian voice reads numbers and Russian names. In 2013, for the first time, UVB-76 issued an order: “Command 135 initiated”
BROL TIL The word “font” actually only refers to things like ‘bold’ or 'italics’ and the actual style of the letters is called a 'typeface’
yQyPJ TIL that the Plague of the Middle Ages likeky did not make 10% Europeans resistant to HIV by increasing the frequency of a protective genetic mutation (CCR5-Ä32), scientists DNA tested 4900 year old skeletons and found the mutation was already common in the Bronze Age
7rOBO TIL an Austrian man won the right to right to be shown on his driving-licence photo wearing a pasta strainer as "religious headgear". He claimed that he was a “Pastafarian”, and the strainer was a requirement of his religion.
DvnP TIL that the emperor penguin can dive to a depth of 1,850 ft (565 m) - deeper than any other bird, and deeper than the operational range of most naval submarines