1930 (MCMXXX, in Roman numerals) was a common year of the 20th century of the current Gregorian Calendar, of the Age of Christ, and its Sunday letter was E (52 weeks), it started on a Wednesday and also ended on a Wednesday -fair.
January 25th - foundation of São Paulo Futebol Clube
February 18 - Clyde Tombaugh discovers Pluto
March 1 - The twelfth Presidential Election of Brazil takes place. Júlio Prestes wins the elections.
April 2 - Haile Selassie becomes Emperor of Ethiopia
Between July 13th and July 30th - First FIFA World Cup. Uruguay served as the host of the championship, in addition to being the first champion.
July 26 - João Pessoa is assassinated.
October 3 - Revolution of 1930: In Porto Alegre, the headquarters of the 3rd Military Region were taken over, the so-called revolution began.
October 4 - Revolution of 1930: Revolutionaries overthrow the government of Minas Gerais.
October 8 - Revolution of 1930: Revolutionaries overthrow the government of Pernambuco. Other northeastern states fall under the command of the lieutenants.
October 10 - Revolution of 1930: Getúlio Vargas leaves by train for Rio de Janeiro.
October 16 - Revolution of 1930: Revolutionaries overthrow the government of Santa Catarina and Espírito Santo.
October 24 - 1930 Revolution: President Washington Luís is deposed by his military ministers, and they form a Military Junta to hand over power to Vargas.
November 3 - 1930 Revolution: The Military Junta hands over power to Getúlio Vargas, making him the 14th President of Brazil.
Dámaso Berenguer y Fusté replaces Miguel Primo de Rivera y Orbaneja as president of the Spanish government.
Creation of the Tanzanian Football Federation.
Official renaming to Istanbul from the city of Constantinople
January 20 – Edwin Aldrin, United States astronaut and second man to walk on the moon.
January 24 - Kjell Eugenio Laugerud García, president of Guatemala from 1974 to 1978 (d. 2009).
April 3 – Helmut Kohl, politician, German chancellor between 1982 and 1998 (d. 2017)
April 15 – Vigdís Finnbogadóttir, President of Iceland from 1980 to 1996.
April 19 – Armando Bógus, Brazilian actor (d. 1993).
April 24 - José Sarney, politician and president of Brazil from 1985 to 1990.
June 26 – Jovanni Masini, Brazilian politician.
June 27 – Ross Perot, American businessman and politician.
June 28 - Itamar Franco, politician and president of Brazil from 1992 to 1995. (d. 2011)
June 29 – Edward Johnson III, American investor and entrepreneur.
Ahmed Zaki Yamani, Saudi politician.
Thomas Sowell, American economist, social critic, political philosopher and conservative liberal author.
July 1 – Gonzalo Sánchez de Lozada, industrialist and president of Bolivia from 1993 to 1997 and from 2002 to 2003.
Carlos Saúl Menem, president of Argentina from 1989 to 1999.
Ahmad Jamal, American jazz pianist.
July 4 – Alfredo Hua-Sing Ang, American civil engineer.
July 7 – Pedro Novais, Brazilian politician.
July 10 - António Gentil Martins, Portuguese plastic surgeon and pediatric surgeon.
July 11 – Harold Bloom, American professor and literary critic.
July 22 – Pedro Farah, Brazilian film and television actor.
August 5 – Neil Armstrong, United States astronaut and first man to walk on the moon. (m. 2012)
August 16 – Leslie Manigat, President of Haiti in 1988 (d. 2014)
August 25 – Sean Connery, Scottish actor.
October 24 - The Big Bopper, Singer-Songwriter (d. 1959).
October 31 - Michael Collins, astronaut of Apollo 11, man's first mission to the moon.
December 12 - Silvio Santos, television presenter, entrepreneur and founder of SBT
January 21 - Júlio Vieira do Nascimento, "multifaceted man - journalist, politician, association and union leader, industrialist, merchant, publicist and historian" (b. 1880).