Spain legalized same-sex marriage.
This made Spain the fourth country in the world to do so.
Source
The United States Congress passed the Meat Inspection Act and Pure Food and Drug Act.
Robert H. Lawrence, Jr. was selected as the first African-American astronaut.
The first Chevrolet Corvette was manufactured in the US.
The first leap second was added to the UTC time system.
The world's first emergency telephone calls were accepted in London, UK.
