On April 1

An American Lockheed EP-3 and a Chinese Shenyang J-8 collided in mid-air off Hainan, resulting in an international dispute between the two countries.

Same-sex marriage in the Netherlands was legalized, making it the first country to do so.

The longest prison riot in British penal history began at Strangeways Prison in Manchester, lasting 25 days.

Steve Jobs and Steve Wozniak founded Apple Computer, Inc. (first logo pictured).

A man ignited tires in the crater of Mount Edgecumbe, prompting a false eruption scare later revealed as an April Fools' hoax.

The American Motors Corporation introduced its Gremlin, promoted as America's first subcompact car.

U.S. president Richard Nixon signed the Public Health Cigarette Smoking Act into law, requiring that a prominent warning by the surgeon general be placed on cigarette packages.

The Hawker Siddeley Harrier, the first operational fighter aircraft with V/STOL capabilities, entered service with the Royal Air Force.

On Her Majesty's Secret Service, the tenth novel of Ian Fleming's James Bond series, was released in the United Kingdom.

The British Army's Mobile Defence Corps, intended to assist with civil defence after a nuclear attack, was established by royal warrant.

Israel enacted a citizenship law, prior to which the country technically had no citizens.

Soviet border guards opened fire on civilians attempting to cross the border from the Soviet Union to Romania near Fântâna Albă, killing between 44 and 3,000 people.

English cricketer Wally Hammond set a record for the highest individual score in Test cricket of 336 not out during a match against New Zealand.

Under the South Seas Mandate, Japan set up a government in Koror, precipitating large-scale Japanese settlement in Palau.

The United Kingdom established the Royal Air Force, near the end of the First World War.

The Inland Customs Line, established by the British for the collection of the salt tax in India, was abandoned.

The Duke of Buckingham opened the first section of the Brill Tramway, a short railway line to transport goods between his lands and the national rail network.

American Civil War: The Union Army under Major General Philip Sheridan (pictured) inflicted more than 2,900 casualties on the Confederates at the Battle of Five Forks.

Mexican Texans met at San Felipe de Austin to begin the Convention of 1833.

Hundred Years' War: John, Duke of Normandy, laid siege to the town of Aiguillon.