Donald Trump announced he was running for President.
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Ghostbusters II was released in 2,410 movie theaters across the US.
Grease, starring John Travolta and Olivia Newton-John, was released in the US.
Pepsi Cola became an official trademark.
Cosmonaut Valentina Tereshkova became the first woman in space.
The Wizard of Oz was shown at The Chicago Grand Opera House for the first time.
