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TIL while writing "A Christmas Carol," Charles Dickens was "taking night-time walks of 15 to 20 miles (24 to 32 km) around London." to build out the story in his head.

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O08R TIL That the current US flag was designed by a 17 year old who originally got a B- grade for it.
Wjr8 TIL there’s a Japan indoor vegetable-factory that produces 10,000 heads of lettuce a day while using just 1% of the amount of water needed for outdoor fields. LEDs emit light at ideal wavelengths for plant growth, while also optimizing night and day cycles, allowing lettuce to grow 2.5 times faster.
Nmge TIL Any statistic along the lines of “the top X people have the same amount of wealth as the bottom Y people” is misleading due to the massive amount of people who have a negative net worth.
LlMV TIL crows recognise human faces and hold grudges against ones they do not like.
OGLx4 TIL that the names for Wales, Walloonia, Cornwall, Gaul, and many more, are related via one proto-germanic word meaning "foreigner"