1913 – A group of meteorsis visible across much of the eastern seaboard of North and South America, leading astronomers to conclude the source had been a small, short-lived natural satellite of the Earth.
1920 – Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
1964 – The Beatles make their first appearance on The Ed Sullivan Show, performing before a "record-busting" audience of 73 million viewers across the USA.
1965 – Vietnam War: The first United States troops with a combat mission, a Marine Corps Hawk air defense missile battalion, are sent to South Vietnam.