It happenned on a… 4 April

Find out about the main events that have taken place on this day over the years.

13 April 2018, Germany, Stetten am kalten Markt: A soldier of the Kommando Operative Fuehrung/Multinational Joint Headquarters wears the ensignes of the military exercise 'Trident Jaguar'. The commando is beginning preparations for NATO certification for deployment in conflict areas. The final test takes place end of May in a large scale military exercise called 'Trident Jaguar' Photo: Thomas Warnack/dpa Where: Stetten am kalten Markt, Baden-Wuerttemberg, Germany When: 13 Apr 2018 Credit: Thomas Warnack/picture-alliance/Cover Images

1989

Kareem Abdul-Jabbar’s last NBA game in Seattle.

1986

Wayne Gretzky set an NHL record with his 213th point of the season.

1983

At Cape Canaveral, the space shuttle Challenger took off on its first flight. It was the sixth flight overall for the shuttle program.

1975

Microsoft is founded as a partnership between Bill Gates and Paul Allen to develop and sell BASIC interpreters for the Altair 8800.

1968

Martin Luther King Jr. was assassinated at the age of 39.

1964

The Beatles occupy the top five positions on the Billboard Hot 100 pop chart.

1949

Canada and eleven nations signed a treaty to create The North Atlantic Treaty Organization (NATO).

1850

City of Los Angeles incorporated.

1814

Napoleon abdicates for the first time in favour of his son.