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The original was posted on /r/todayilearned by /u/shibafather on 2025-05-16 03:28:48+00:00.

Original Title: TIL about Black Monday during the Hundred Years’ War, in which a sudden hailstorm killed around 1000 English soldiers and up to 6,000 horses in only half an hour. The carnage convinced the English king that the storm was God’s wrath, and he sued for peace with the French the next day.