The most destructive riot in Constantinople’s history, the Nika Riots, began during a chariot race.
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Galileo Galilei discovered Callisto, the fourth moon of Jupiter.
Alfredo Ormando set himself on fire in St. Peter's Square, protesting against the Roman Catholic Church's teaching on homosexuality.
Walt Disney's Mickey Mouse comic strip was published for the first time.
German composer Richard Wagner completed 'Parsifal' – one of his most famous operas.
A meteorite that landed in Australia in the 1960s revealed stardust up to 7 billion years old.
