Spanish conquistadors defeated a large Aztec army at the Battle of Otumba.
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Dutch artist Wilfred Stijger broke the world record for the tallest sandcastle.
NASA's Opportunity Mars rover launched from the Florida Cape Canaveral Space Force Station.
The world celebrated the introduction of sliced bread for the first time.
The famous Great White Fleet left San Francisco to continue its around-the-world journey.
The London bombings took place.