The Wars of Castro ended when Pope Innocent X and his forces destroyed the Italian city of Castro.
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The first battle between the Spanish settlers and the Mexican natives of the Otomi and Tlaxcalans tribespeople started.
Machine guns were used for the first time in a battle in Omdurman, Sudan, Africa.
The largest known solar storm occurred, causing electrical problems to telegraph services.
Egypt's state TV lifted the ban on veiled news presenters.
Queen Cleopatra VII of Egypt named her son Ptolemy XV Caesar a co-ruler of Egypt.
