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TIL that in August 2019, the US Army released a report stating that the country and its military would experience a total collapse within the next two decades due to collapses in the country's aging power grid and food supply, as well as the increased risk of infectious disease outbreaks globally.

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neVQ7 TIL The first "bleep" censor machine was invented in 1921 after Vaudeville actress Olga Petrova appeared on a Newark radio station making an oblique reference to the need for birth control in violation of the Comstock Laws.
oBew8 TIL that when George Washington died in 1799, the British Royal Navy was ordered to lower their flags to half mast. The London Morning Chronicle opined that ‘The whole range of history does not present to our view a character upon which we can dwell with such entire and unmixed admiration’.
1aGe4 TIL Rockapella (of 'Where in the World is Carmen Sandiego?' fame) is still active and touring.
lOR5 TIL of megalithic ruins in Indonesia that push human civilization as far back as 20,000 bce, before the end of the last ice age.
WneX TIL that the Bermuda Land Snail was thought to have gone extinct in the 70s. In 2014, many were rediscovered in a Hamilton city alleyway. The snails had colonized the alley early on and the surrounding city shielded them from the threats that wiped out the rest of the species.