During the 1930s, the ACLU started to engage in work combating police misconduct and Native American rights.

During the 1930s and 1940s Joseph Stalin's NKVD carried out numerous assassinations outside of the Soviet Union, such as the killings of Organization of Ukrainian Nationalists leader Yevhen Konovalets, Ignace Poretsky, Fourth International secretary Rudolf Klement, Leon Trotsky, and the Workers ' Party of Marxist Unification ( POUM ) leadership in Catalonia.

During the 1930s other ideas were proposed as non-standard cosmologies to explain Hubble's observations, including the Milne model, the oscillatory Universe ( originally suggested by Friedmann, but advocated by Albert Einstein and Richard Tolman ) and Fritz Zwicky's tired light hypothesis.

During the 1930s, the silent film comedy was replaced by dialogue from film comedians such as the W. C. Fields and the Marx Brothers.

During the 1930s, multiple acts of cannibalism were reported from Ukraine and Russia's Volga, South Siberian and Kuban regions during the Soviet famine of 1932 – 1933.

During the 1930s, the original art for a daily strip could be drawn as large as 25 inches wide by six inches high.

During the 1930s, the original art for a Sunday strip was usually drawn quite large.

During the 1930s and 40s, significant improvements were made to the ground, making it one of the largest in the country at that time.

During the 1930s the French Army experimented with integrating mounted and mechanised cavalry units into larger formations.

During the 1930s and early 1940s, Alston created illustrations for magazines such as Fortune, Mademoiselle, The New Yorker, Melody Maker and others.

During the early 1930s throughout Europe, Jewish owners of numerous fine art masterpieces found themselves forced to give up or sell off their collections for minimal prices due to anti-Jewish laws created by the new Nazi regime.

During the late 1920s and early 1930s Eisenhower's career in the post war army stalled somewhat, as military priorities diminished ; many of his friends resigned for high-paying business jobs.

During the 1920s and 1930s destroyers were often deployed to areas of diplomatic tension or humanitarian disaster.

During the Great Depression of the 1930s, John Maynard Keynes authored a book entitled The General Theory of Employment, Interest and Money outlining the key theories of Keynesian economics.

During the 1920s and 1930s, Aimee Semple McPherson was a controversial faith healer of growing popularity during the Great Depression.

During the latter's dictatorship in the 1930s, Guatemala was further opened up to foreign investment, with special favors being made by Ubico to the United Fruit Company in particular.

During the late 1930s and through the 1940s — the heyday of big band jazz and swing music — the guitar was an important rhythm section instrument.

During the early 1930s, the Vienna Circle dispersed, mainly because of political upheaval and the deaths of Hahn and Schlick.

During the 1920s and the 1930s, Stalin fought and defeated the political influence of Leon Trotsky and of the Trotskyists in Russia, by means of slander, anti-Semitism, programmed censorship, expulsions, exile ( internal and external ), and imprisonment.

Hofmann was renowned not only as an artist but also as a teacher of art, and a modernist theorist both in his native Germany and later in the U. S. During the 1930s in New York and California he introduced modernism and modernist theories to a new generation of American artists.

During the 1930s, the illustrator Vernon Grant developed Snap, Crackle and Pop as gnome-like mascots for the Kellogg Company.

During the 1930s and 1940s, the state passed labor laws, implemented agrarian reform, and assumed a role in modernization, influenced in part by the leadership of Juan Domingo Perón in Argentina and Getúlio Dornelles Vargas in Brazil.

During the 1930s Belgian colonial authorities in Rwanda used phrenology to explain the so-called superiority of Tutsis over Hutus.

During the 1930s, the minotaur replaced the harlequin as a common motif in his work.

During the 1930s and 1940s, Heinlein was deeply interested in Alfred Korzybski's General Semantics and attended a number of seminars on the subject.

During his visits, Ribbentrop met with Simon and Benito Mussolini, and asked them to postpone the next meeting of the Bureau of Disarmament, in exchange for which Ribbentrop offered nothing in return other than promising better relations with Berlin.

During the fascist regime of Benito Mussolini ( 1922 – 1943 ), the Carabinieri were one of the police forces entrusted with suppressing opposition in Italy.

During World War II, the German leader Adolf Hitler and the Italian leader Benito Mussolini met there to celebrate their Pact of Steel on 18 March 1940.

During the regime of Benito Mussolini, SPQR was emblazoned on a number of public buildings and manhole covers in an attempt to promote his dictatorship as a " New Roman Empire ".

During the earthquake of 1985 both the Benito Juárez and Nonoalco-Tlaltelolco complexes suffered major damage, with some buildings collapsing.

During the interwar years, Donovan traveled extensively in Europe and met with foreign leaders including Benito Mussolini of Italy.

During his time in exile, Jabotinsky started regarding Benito Mussolini as a potential ally against the British, and contacts were made with Italy.

During this time Benito Juárez and other Liberal leaders fought to dethrone Maximillian and eventually succeeded.

During the Franco-Mexican War ( 1861 – 1867 ), Jesús Carranza became a colonel and was Benito Juárez's main contact in Coahuila.

During the Mexican Revolution, the Zapatistas took control of the south of the current Federal District including parts of Benito Juárez like Mixcoac.

During the French Invasion of Mexico in the second half of the 19th century, the president Benito Juárez spent some days in Santa Catarina while traveling to Monterrey, and it was during this time that he elevated its status to Village.

During his term as president, Benito Juárez served as president of the Supreme Court of Mexico.

During the two decades of fascism, Ponza and the nearby Ventotene, served as a prison for political opponents of Benito Mussolini's regime.

During the 1930s Benito Mussolini added some armored cars units to the Ascari.

During the Second World War she was one of the very few diplomatic channels between the German / Italian camp and the other European countries involved in the war, as she was the sister of Leopold III of Belgium ( kept hostage by the German forces ) and at the same time close to some of the ministers of Benito Mussolini's cabinet.

During his discourse Giertych however had explicitly condemned National Socialism and insisted Benito Mussolini and Adolf Hitler also had an " atheistic and socialistic taste about them ".

During the summer of 1982, the Benito Villamarín hosted two matches as part of the 1982 FIFA World Cup, and also witnessed the Spanish national team's famous 12 – 1 hammering of Malta in order to qualify for UEFA Euro 1984.

During World War II, the English College left Benito Mussolini's Italy and occupied the hall.

During spring training of 2001, the Giants signed veteran catcher Benito Santiago, who took over the starting role.

During the summer of 1863, the president of Mexico, Benito Juárez, was overthrown and replaced by the emperor Maximilian, whose allegiance was with France.

During the course of 29 April, Hitler learned of the death of his ally, Benito Mussolini, who had been executed by Italian partisans.

During the last months of World War II, the Italian dictator Benito Mussolini and other diehard fascist leaders of the Italian Social Republic ( RSI ) proposed making a " last stand " against the advancing Allied armies in the Valtellina.

During his time as national secretary, he confirmed the MSI ’ s role as the inheritors of Benito Mussolini ’ s Fascist legacy with a number of famous polemical statements, including: " Dear comrades, MSI claims its right to refer to fascism " ( 1988 ), " We are fascists, the heirs of fascism, the fascism of the year 2000 " ( 1991 ), " After almost half a century, the idea of fascism is alive " ( 1992 ), " There are phases where freedom is not among the key values " ( 1994 ), " Mussolini was the greatest Italian statesman of the twentieth century ", " Fascism has a tradition of honesty, correctness and good government " ( 1994 ).

During World War II, Manhattan was jailed in Italy for refusing to serve in Benito Mussolini's fascist army.