The Wizard of Oz was shown at The Chicago Grand Opera House for the first time.
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Grease, starring John Travolta and Olivia Newton-John, was released in the US.
The rules for the Grammy Awards were updated to restrict AI-generated songs.
Donald Trump announced he was running for President.
Ghostbusters II was released in 2,410 movie theaters across the US.
Glenn Curtis sold the first airplane in the US for just $5,000.
