The Wars of Castro ended when Pope Innocent X and his forces destroyed the Italian city of Castro.
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Google launched Google Chrome, its own cross-platform web browser.
Great Britain and its colonies spent their last day using the Julian calendar.
Dieudonne Costes and Maurice Bellonte successfully flew the first non-stop transatlantic flight from east to west when they landed in New York City.
Bing Crosby made his nationwide solo radio debut.
The first battle between the Spanish settlers and the Mexican natives of the Otomi and Tlaxcalans tribespeople started.
