1930 (MCMXXX in Roman numerals) is a year of the 20th century.
Italy: Carlo Rosselli's book Socialismo Liberale constitutes a manifesto of the anti-fascist movement called Giustizia e Libertà.
Great Britain: British economist John Maynard Keynes publishes the Treatise on Money.
Ignazio Silone, in exile in Zurich for political reasons, publishes Fontamara.
January 8 - Rome: Prince Umberto of Savoy marries Maria José of Belgium.
February 1 - Soviet Union: the government orders the expropriation of the lands of the kulaks (wealthy peasants) and the deportation of the population, starting the forced collectivization of agriculture.
February 18 - United States: Pluto is discovered
March 8 - India: Gandhi led civil disobedience begins
April 1 - Berlin: first screening of The Blue Angel, a film by Josef von Sternberg that launches Marlene Dietrich.
April 24 - Edda Mussolini, the Duce's daughter, marries Galeazzo Ciano.
July 23 - Irpinia and Vulture earthquake: numerous damages and deaths in Basilicata, Campania and Puglia. Serious injuries also to the National Archaeological Museum of Naples.
July 30 - Uruguay: the first edition of the Soccer World Cup is held. Uruguay wins the title by beating Argentina.
5 August - astronaut Neil Armstrong is born in Wapakoneta and in 1969 he will become the first man to set foot on the Moon commanding the Apollo 11 expedition.
September 8 - Duct tape is released in Minnesota.
October 2 - Inside the San Quentin prison, California, the serial killer of children Gordon Stewart Northcott, responsible for the so-called "Wineville chicken coop murders", is executed by hanging. story inspired the famous film Changeling.
7 October - Rome: national premiere at the Supercinema of La song dell'amore, the first Italian sound film.
October 30: a strong VII-IX MCS earthquake occurs in Senigallia which causes 18 deaths and various destructions in the city and in the rest of the province of Ancona.
Beginning of industrial civilization, according to the Olduvai Theory.
The maritime station of the port of Trieste is inaugurated.
There are about 2 160 rumors about people born in 1930; see the 1930 Born page for a descriptive list or the 1930 Born category for an alphabetical index.
There are about 550 rumors of people who died in 1930; see the Deaths in 1930 page for a descriptive list or the Deaths in 1930 category for an alphabetical index.
The following Nobel Prizes were awarded this year:
for Peace: Lars Olof Nathan Soederblom
for Literature: Sinclair Lewis
for Medicine: Karl Landsteiner
for Physics: Chandrasekhara Venkata Raman
for Chemistry: Hans Fischer
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