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TIL that more than half of the oxygen we breathe come from marine photosynthesizers like seaweed and phytoplankton.

Read more ocean.si.edu

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jGeE TIL In London from 1682 one could buy fire insurance: you attached a metal plate to their building ensuring that if there were a fire their insurance company would fight to extinguish it. If the building wasn’t insured the fire wasn’t put out unless it threatened to spread to an insured building.
rNKx0 TIL the bird population has dropped 30% since 1970
ZQdD TIL German General Walther Wenck refused orders to reclaim Berlin from the Russians in 1945 and instead used the remains of his army to create a corridor to for civilians and soldier to flee to the Americans across the Elbe River
xVnxb TIL of Botrytized Wines, known for their sweetness. They gain the character from being made from moldy grapes infected by a specific fungus. The rotten skin increase water evaporation and highetens the sugar concentration.
6EOal TIL about Avro Yeadon, which built nearly 700 Lancaster bombers in WW2. To avoid German bombing, an elaborate camouflaging operation took place, grass covering the roof and hedges made out of fabric to replicate the original field pattern. Dummy animals were moved daily to increase the camouflage