1955 (MCMLV, in Roman numerals) was a common 20th century year that began on a Saturday, according to the Gregorian calendar. Its Sunday letter was B. Shrove Tuesday was on February 22 and Easter Sunday on April 10. According to the Chinese horoscope, it was the year of the Goat, starting on January 24th.
January 28 - foundation of the municipality of Giruá-RS
February 18 - foundation of the municipality of Ipixuna (Amazonas).
March 8 - Beginning of the transmissions of Tv Rio Founded by João Batista do Amaral.
March 13 - Start of the 1955 Pan American Games with Mexico as the host country.
March 22 - The Argentina national football team wins in the Football category at the 1955 Pan American Games and defends the title.
March 30 - The Argentina national football team is champion of the 1955 South American Football Championship.
May 14 - The Warsaw Pact is created to fight NATO.
May 15 - The Austrian State Treaty is signed by the foreign ministers of the United Kingdom, France, the United States, the Soviet Union and Austria, after the signing of the treaty, Austria received its independence and sovereignty.
May 30 - The 1955 São Paulo Football Championship begins.
June 11 - 1955 Le Mans tragedy kills 82 people in the biggest accident in motorsport history.
June 16 - The Plaza de Mayo bombing massacre takes place in Argentina's capital, Buenos Aires.
August 20 - Cernache do Bonjardim is elevated to town by decree n.º 40 291.
The 1955–56 European Champion Clubs' Cup is held.
September 6 - Istanbul pogrom begins being directed especially against the Greek minority in Istanbul.
September 7 - Istanbul Pogrom ends with thirteen to seventeen dead; increased flight of ethnic Greeks from Turkey.
September 16 - Liberation Revolution begins and ends on the same day with the Peronist government overthrown and Eduardo Lonardi becomes the new Head of State.
October 3 - Juscelino Kubitschek is elected president of Brazil.
November 1 - Start of the Vietnam War.
December 1 - The Montgomery Bus Boycott begins.
December 19 - The Amazon municipalities of Atalaia do Norte, Autazes, Careiro, Envira, Japurá, Juruá, Jutaí, Maraã, Nova Olinda do Norte, Novo Aripuanã and Tapauá are created.
First Taiwan Strait Crisis ends with the People's Republic of China's withdrawal from the Republic of China.
The Cypriot Civil War begins.
January 28 - Nicolas Sarkozy, President of France 2007/2012.
February 24 – Alain Prost, French racing driver.
February 24 - Steve Jobs, co-founder, president and CEO of Apple Inc. (m. 2011)
March 12 – Wang Yang, Chinese politician.
March 21 - Jair Bolsonaro, 38th president of Brazil
March 22 - Valdis Zatlers, President of Latvia 2007/2011.
March 24 – Celâl Şengör, Turkish geologist
May 10 – Mark Chapman, American criminal.
June 23 – Glenn Danzig, American musician.
June 30 - Luís Santos, International Master of Portuguese Chess.
July 1 – Li Keqiang, Prime Minister of China since 2013.
July 3 - Edson Gomes, Brazilian reggae singer, songwriter.
July 5 - Mia Couto, Mozambican writer and biologist.
July 17 - Paulo Rubem Santiago, Brazilian professor and politician.
July 20 - Romero Lubambo, Brazilian guitarist, guitarist, arranger and composer.
October 18 – Jean-Marc Savelli, French pianist
October 28 – Bill Gates, programmer, philanthropist, tycoon, co-founder and president of Microsoft.
February 10 – Mokiti Okada, founder of the World Messianic Church (b. 1882).
March 23 - Arthur