
Acts of Union Create Kingdom of Great Britain
The Acts of Union between England and Scotland took effect, creating the Kingdom of Great Britain. The Scottish Parliament was dissolved and Scottish MPs joined Westminster.
May Day has been celebrated as a workers' holiday and has seen pivotal events from espionage to architecture.

The Acts of Union between England and Scotland took effect, creating the Kingdom of Great Britain. The Scottish Parliament was dissolved and Scottish MPs joined Westminster.
Adam Weishaupt founded the Order of the Illuminati at the University of Ingolstadt. The secret society promoted Enlightenment ideals but was suppressed within a decade.
Great Britain issued the Penny Black, the world's first adhesive postage stamp. The innovation revolutionized mail delivery by prepaying postage.
Queen Victoria opened the Great Exhibition in the Crystal Palace in London's Hyde Park. The first World's Fair showcased industrial achievements from around the world.
Commodore George Dewey's Asiatic Squadron destroyed the Spanish fleet in Manila Bay, Philippines. The decisive victory took only hours and established U.S. power in the Pacific.

The Empire State Building opened in New York City as the world's tallest building at 1,454 feet. It held the record for nearly 40 years.

An American U-2 reconnaissance plane piloted by Francis Gary Powers was shot down over the Soviet Union. The incident derailed a planned summit between Eisenhower and Khrushchev.