1966 (MCMLXVI in Roman numerals) is a year of the 20th century.
January 1: Colonel Jean-Bédel Bokassa defeats President David Dacko and takes power in the Central African Republic.
January 2: Franca Viola, the first Italian woman to refuse the shotgun wedding, is released. She became a symbol of the civil growth of Italy after World War II and of the emancipation of Italian women.
January 9 - Spain: the first edition of the Intercontinental Basketball Cup is held in Madrid. The Italian team of Ignis Varese conquers it.
January 10 - Tashkent: India and Pakistan sign peace agreements.
January 13: After months of black demonstrations and riots to obtain civil and political rights, Robert Weaver becomes the prime minister of color in the history of the United States.
Simon and Garfunkel release their second album, Sounds of Silence.
A B-52 bomber collides with a KC-135 refueling plane over the skies of Spain, dropping three 70-kiloton hydrogen bombs near the town of Palomares and another at sea. None of these explode.
January 19: after the sudden death of Prime Minister Lal Bahadur Shastri, Indira Gandhi is elected Prime Minister of India taking on a post that was also taken by her father Jawaharlal Nehru (from 1947 to 1964).
January 28 - Bremen: at 18:50 a plane of the German company Lufthansa, departed from Frankfurt, crashes on landing; in the resulting stake, the four crew members and all forty-two passengers on board die; among them also seven swimmers of the Italian national team (Carmen Longo, Luciana Massenzi, Daniela Samuele, Bruno Bianchi, Amedeo Chimisso, Sergio De Gregorio and Chiaffredo "Dino" Rora) the coach-assistant Paolo Costoli and the RAI commentator Nico Sapio. It is the most serious disaster occurred to Italian swimming and one of the most serious in all of the blue sport, after that of Superga in which the Grande Torino of Captain Valentino Mazzola disappeared.
January 30: the Luxembourg Compromise is signed for the use of the majority method in the EEC.
January 31: The Russian Space Agency launches the Luna 9 probe into space, the first mechanical object to land on lunar soil.
February 4: the Index of Prohibited Books is abolished
February 14 - Milan: an investigation into the position of women in society is published in the student newspaper La mosquito of the Parini high school. A nationwide scandal erupts.
February 23 - Syria: internal coup of the Ba'th party in power.
March 4 - London: In an interview with the Evening Standard, John Lennon makes the famous statement: "We are more popular than Jesus Christ."
March 5: Austria wins the Eurovision Song Contest, hosted in Luxembourg, Luxembourg.
March 8: Pope Paul VI publishes the new statute of the Holy Office, which officially decrees the abolition of the Index of forbidden books.
April 8 - USSR: Leonìd Il'ìč Brèžnev becomes general secretary of the Soviet Union.
April 13 - Southern Iraq: the helicopter carrying Iraq's President Abd al-Salam Arif crashes, killing him and ten people.
April 21 - Houston (Texas): first artificial heart implant in a human organism.
April 27 - Rome: first beat mass in the oratory of the Philippine Fathers.
April 30: The Church of Satan is founded by Anton LaVey.
May 1 - Bulgaria: a mine reservoir collapses causing an avalanche of mud and debris that engulfs and destroys Zgorigrad and Vratsa, killing nearly 500 people.
May 2: A round table on juridical positivism is held in Pavia. Among others, Norberto Bobbio participates in the meeting, who after his initial approach to the legal positivist doctrine, denounces the crisis, overturning the