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gptkbp:has_events
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gptkb:First_Earth_Day
gptkb:Apollo_13_mission
The Beatles break up
The Vietnam War continues
The first Glastonbury Festival is held
The first New York City Marathon is held
The first Super Bowl is played
The first episode of ' The Partridge Family' airs
The introduction of the Boeing 747
The launch of the first video game, ' Pong'.
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