The American submarine USS Greeneville collided with the Ehime Maru, a Japanese training vessel operated by a high school, sinking the latter ship and killing nine people on board.
Breaking a seventeen-month ceasefire, the Provisional Irish Republican Army detonated a powerful truck bomb in the London Docklands, killing two people and injuring more than a hundred others.
The Australian Defence Force (ensign pictured) was formed by the integration of the Australian Army, the Royal Australian Navy, and the Royal Australian Air Force.
As Beatlemania swept the United States, the Beatles (pictured) made their first appearance on The Ed Sullivan Show before a record-breaking audience, beginning a musical phenomenon known as the British Invasion.