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.
The largest known solar storm occurred, causing electrical problems to telegraph services.
The United States announced its recognition of Estonia, Latvia & Lithuania's independence as individual countries after the collapse of the Soviet Union.
Egypt's state TV lifted the ban on veiled news presenters.