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TIL In WW2 Germany built an underground fortress in France to fire V-3 superguns at London. The artillery had a range of 103 miles and the potential to fire at 60 rounds a hour.

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aRyy TIL Through the process of plant grafting, you can buy a tree that grows up to 7 different fruits on it, called a “fruit salad tree.”
78Dmp TIL that the Candiru (cetopsis) in the Amazon bites and rotates to get inside of his victim and eats you from the inside out in a frenzy by the dozens! Unlike the more famous and smaller bloodsucking Candiru (Vandellia cirrhosa) that is supposed to swim in to your private parts!
MdQK TIL McDonald’s is a worldwide real estate giant who owns the majority of its property. They buy property and lease it back to their franchisees, collecting billions in revenue each year.
WkKPY TIL Radioactive Spark Plugs were sold in the 1940s under the theory the radiation made the engine run better.
1abVr TIL that the Seventh amendment of the constitution hasn’t changed since it was written so inflation hasn’t been applied despite being over 200 years old.