1918

Russia’s Czar Nicholas II and his family were executed by the Bolsheviks.

1945

President Harry S. Truman, Soviet leader Josef Stalin and British Prime Minister Winston S. Churchill met in the final Allied summit of World War II.

1955

Disneyland opened in Anaheim after its $17 million, yearlong construction; the park drew a million visitors in its first 10 weeks.

1975

An Apollo spaceship docked with a Soyuz spacecraft in orbit in the first superpower link-up of its kind.