The rules for the Grammy Awards were updated to restrict AI-generated songs.
Donald Trump announced he was running for President.
The state of California began issuing marriage licenses to same-sex couples.
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.
Cosmonaut Valentina Tereshkova became the first woman in space.
The US executed an innocent 14-year-old African American teen for the murder of two white girls.
Washington National Airport became the US first federal airport.
IBM was founded as the Computing-Tabulating-Recording Company in Endicott, New York.
Glenn Curtis sold the first airplane in the US for just $5,000.
Henry Ford and 12 investors incorporated the Ford Motor Company in Detroit, Michigan.
Pepsi Cola became an official trademark.
The Wizard of Oz was shown at The Chicago Grand Opera House for the first time.
The longest papal reign began when Pope Pius IX was elected.
The British captured Fort Beauséjour in Canada following a battle with the Arcadians, which began on June 3.
