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TIL From 1847, Rudolf Wolf started counting sunspots. He peered through a telescope every day, if he could, and recorded the number of spots he observed. Today, all sorts of models use Wolf's sunspot record to predict things like the climate, the orbit of satellites, and the stability of power grids

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via reddit.com

6Aa7 TIL that sobriety checkpoints are illegal in Texas under the state’s interpretation of the federal Constitution
8aXbZ TIL of Robert Hubert, who was accused of causing the Great Fire of London. He declared that he had thrown a grenade through a window into the bakery where it had started. Yet, he hadn’t been in England, the bakery didn’t have any windows, and he was a cripple. He was still executed.
Oww1 TIL White tigers are not an endangered species that need to be saved, but are the result of double recessive traits, and are severely inbred to produce more white tigers, resulting in health problems.
D1g9e TIL that Jackie Chan sings the Cantonese version of “I’ll Make a Man Out of You” on the DVD for the Disney movie Mulan
D1kbj TIL in 1996, Chex cereal had an FPS game developed based on DOOM.