Dateline

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— The most important thing that happened on this date

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Every year on this date

The record

Events come from Wikipedia's “On this day” feed. The headline for each date is an editorial pick from the day's best-covered events; “languages” counts how many Wikipedia editions have an article on the event's main subject. Text is available under CC BY-SA 4.0; images come from Wikimedia Commons, and each links to its article.

Link to any date by adding it to the address, for example #07-20.