Francisco Pizarro became the Governor of Castile, which is a historic area of modern-day Peru.
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The Summer Olympic Games opening ceremony was held outdoors for the first time ever.
New York became the 11th state to join the United States of America.
The US Postal Service was founded.
As part of the War of the Roses in England, the Battle of Edgcote took place.
Asiana Airlines Flight 733 crashed in South Korea.