Jim “Catfish” Hunter of the Oakland Athletics pitched the ninth perfect game, defeating the Minnesota Twins (4-0).
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The first Westminster dog show took place.
Richard Nixon was harassed in Peru.
The New Revolution at Six Flags Magic Mountain was the world's first modern roller coaster to include a vertical loop.
Singapore passed anti-fake news laws.
NASA's Atlas-Centaur rocket exploded mid-air during its first test flight.