Ozzy Osbourne bit the head off a bat that a fan threw onto the stage during a performance in Des Moines, Iowa.
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Heavy metal artist Ozzy Osbourne released his first solo album, 'Blizzard of Ozz.'
Rock and roll musician Buddy Holly died during a plane crash near Clear Lake, Iowa.
Legendary rock singer Ozzy Osbourne announced his retirement from touring.
A circus performer patented the modern trampoline.
Iowa became the 29th state to join the United States of America.
