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TIL that the Slurpee was invented by accident at a Dairy Queen. The owner, Omar Knedlik, didn’t have a soda fountain and so kept them cool in his freezer. He left them in too long, but served them to customers anyway. They loved it.

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QJX96 TIL of the Raines Sandwich. In 1896, New York passed the Raines law to reduce Sunday drinking. The law had a loophole allowing bars to serve alcohol only with a meal. Staff added a sandwich to every drink order, then took it away, serving it to the next customer - the sandwich often lasted all day.
QJNgX TIL that the reason spray paint cans have a marble inside them to mix up the propellant and paint inside the can.
bWV9 TIL that schizophrenics are much less likely to recognize the sound of their own voice.
eppMg TIL while the UK's blockade of Africa was largely successful in stopping the Atlantic Slave Trade, the United States was a long-term hold-out and refused permission for the British to search their ships for slaves. Because of this, many slavers flew fake American flags to continue the trade.
697Yl TIL London is technically a forest