The state of California began issuing marriage licenses to same-sex couples.
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The rules for the Grammy Awards were updated to restrict AI-generated songs.
The longest papal reign began when Pope Pius IX was elected.
Henry Ford and 12 investors incorporated the Ford Motor Company in Detroit, Michigan.
Glenn Curtis sold the first airplane in the US for just $5,000.
Cosmonaut Valentina Tereshkova became the first woman in space.
