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115

TIL Plant life could not exist without lightning.

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MekWm TIL Andorra is ruled by two Co-princes, the President of France and the Bishop of Urdell. Up until 1993, Andorra would pay a tribute of ~$460 to the French President on odd numbered years, while on even numbered years, the Bishop would receive ~$12, plus six hams, six cheeses, and six live chickens.
16bQ4 TIL that red dyes #2 and #4 were deemed carcinogenic in the 1970s. Even though M&Ms never used these dyes, red M&Ms were discontinued from 1976-1987 because of the health scare.
mxknE TIL that since modern civilizations and languages likely won't exist 10,000 years from now, signs warning about nuclear waste (which will still be dangerous then) have to be designed to be understood by anyone, without the use of language. These tools include pictograms and hostile architecture.
g9RW TIL scorpions evolved from huge aquatic sea scorpions and that 98% of today’s scorpions have a sting no worse than a bee
l7MV5 TIL that Archimedes of the 3rd century BC calculated the universe’s diameter to be what is now 2-light years in astronomy and discovered the law of exponent while trying to name numbers that are significantly higher than 10,000^2 (myriad myriads)