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TIL In 1969 Colorado tried fracking with a nuclear bomb - it worked, but the oil and gas are too irradiated to be used even today

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DZRV TIL of Franz Jägerstätter, an Austrian conscientious objector who told the Nazis that he would not fight for the evil side. He was executed.
Xnlj TIL that foundries use dirt floors because molten metal can make concrete explode due to trapped moisture
PY7xG TIL Nero never fiddled while Rome burned, because there were no fiddles in Rome. Violins were not invented until some 1400 years later.
x6en7 TIL The Gjøa left from the port of Oslofjord in 1903 when Norway was still in a union with Sweden. Over the next three years she was the first to sail the Northwest Passage and returned home to an independent Norway. The crew became some of the nation's first heroes.
0dkRR TIL: An entire Roman legion went missing in the 2nd Century AD, and we're still baffled as to what happened.