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TIL that the pretzel’s iconic shape were created to look like arms in prayer, with the 3 holes representing the Holy Trinity. It was an integral food for Catholics and a popular snack during Lent.

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1DE7 TIL the only news network that does not broadcast air accidents related news is CNN Airport.
yQl0v TIL in 1687, the Parthenon in Athens exploded when it was hit by a Venetian mortar round in a war between Venice and the Turks. The building was being used by the Turks to store gunpowder. One account says the Turks did not expect the Venetians to target such a historic monument. 300 people died.
e07xk TIL in Victorian England they used to take group photos with their dead ones and, given the long exposure time, the dead were often seen more sharply than the slightly-blurred living, because of their lack of movement
69Q TIL Using physics, we could use a small domino to create a chain reaction to knock over whatever, including buildings.
l7xm1 TIL Unconventional computing is computing by any of a wide range of new or unusual methods. It is also known as alternative computing.