1964 (MCMLXIV) in the Gregorian calendar was a leap year that began on a Wednesday.
January 1 - The Federation of Rhodesia and Nyasaland is dissolved.
January 8 - US President Lyndon B. Johnson declares "war on poverty" in the country.
January 12 - Zanzibar rebels launch the Zanzibar Revolution and declare themselves a republic.
January 30 - Ranger 6 is launched by NASA. The mission is to bring TV cameras and crash lands on the Moon.
February 2 - US spacecraft Ranger VI lands on the moon.
February 11 -
War breaks out in Limassol, Cyprus, between the Greeks and the Turks.
Taiwan breaks diplomatic relations with France.
March 6 - Paul I of Greece dies and is succeeded by Constantine II.
March 9 - In Cyprus, Greek Cypriot forces attack Turkish strongholds.
March 14 - A Dallas jury finds Jack Ruby guilty of killing John F. Kennedy's assassin, Lee Harvey Oswald.
March 20 - The forerunner of the European Space Agency, ESRO (European Space Research Organization), is created.
March 27 - The Good Friday earthquake in Alaska: The strongest earthquake in US history hits Alaska. The quake, with a magnitude of 9.2, killed 125 people and caused extensive damage in Anchorage.
March 31 - The dictatorship in Brazil, under General Castello Branco, begins.
April 1 - João Belchior Marques Goulart is ousted as President of Brazil following a coup.
April 2 - Saab launches project leading to the production of a new and larger car; Saab 99.
April 26 - Tanganyika and Zanzibar merge into Tanzania.
May 29 - The Palestinian Liberation Organization (PLO) is established.
June 12 - In South Africa, Nelson Mandela, who has already been imprisoned since 1961, is sentenced to life in prison for treason and espionage.
June 30 - UN military forces leave Congo.
July 26 - State of emergency in Rochester, New York after racial riots.
August 2 - US warships are attacked by North Vietnamese torpedo boats in the Gulf of Tonkin.
August 13 - Last execution in Britain.
September 3 - Indonesian forces land in Malaysia.
September 4 - British forces come to Malaysia's aid.
September 13 - Coup in South Vietnam.
September 21 - Malta becomes independent.
September 27 - The Warren Commission concludes that Lee Harvey Oswald alone killed President John F. Kennedy.
October 15 - Nikita Khrushchev is ousted as Prime Minister and Party Secretary.
November 3 - Lyndon B. Johnson wins over Barry Goldwater in the US presidential election.
November 4 - A military junta seizes power in Bolivia.
November 8 - A ceasefire in the Yemeni civil war.
November 12 - OPEC is created.
November 24 - Belgian and US forces release 1,300 white hostages in Stanleyville, Congo.
December 12 - Kenya becomes independent.
December 25 - A tsunami hits Ceylon and India. 7000 perish.
January 19 - The skate "Einar 1" hits ground and sinks in Varanger. Four perish.
January 20 - Cargo vessel "Norvarp" is on a journey from Finnmark to Trondheim with mink feed, when it crashes and sinks outside Andenes lighthouse.
January 25 - The bankline boat "Nysjø" is sunk by the East German tanker "Trattendorf" off Hjelmsøy in Finnmark. 14 perish.
February 3 - Cargo vessel "Norhals" with stockfish cargo sinks in a storm between Buholmråsa lighthouse and Nord-Rødøy in Trøndelag. The crew of three perishes.
February 26 - The herring boat "Norna" sinks. One perishes.
March 2 - The five kroner banknotes are replaced with coins.
March 12 - A shark disappears off Arnøya in Troms. Three perish.
April 12 - The Knights' Race is arranged for the first time.
May 4 - The right to practice religion is enshrined in the constitution.
September 14 - Langnes Airport, Trom