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 two terms the Constitution was tested and found workable, strong national policies were inaugurated, and the traditions and powers of the Presidential office firmly fixed.

During the decade that followed, the common man, as that piece put it, grew uncomfortable as the Voice of God and fled from behind Saint Woodrow ( Wilson ) only to learn from Science, to his shocked relief that after all there was no God he had to speak for and that he was just an animal anyhow -- that there was a chemical formula for him, and that too much couldn't be expected of him.

During the summers, while he was still in school, Mercer worked for his father's firm as a messenger boy.

During his aggressive campaign to win his present position, Mr. Kennedy was vitriolic about this country's `` prestige '' abroad.

During the rest of the summer my scholarly mania for making plaster casts and spatter prints of Catskill flowers and leaves was all but surpassed by the constantly renewed impressions of Jessica that my mind served up to me for contemplation and delight.

During the period from 1 July 1960 through 31 January 1961, the Medical Museum was required to move to Temporary Building `` S '' on the Mall from Chase Hall.

During the last week of march 1961, Columbus, Ohio was the site of the Fourth Symposium on Temperature, Its Measurement And Control In Science And Industry.

During his presidency, the company's physical plant was enormously expanded, and the length and breadth of the Brown & Sharpe machine tool line became the greatest in the world.

During World War 2,, he was a lieutenant commander in the United States Navy.

During the war it was in constant use by the wagon trains transporting supplies from the railhead at Grafton to the troops operating in the interior.

During Oersted's attendance at the university, it was poorly equipped with physical apparatus for experimenting in the sciences.

During the latter procedure the temperature was maintained at 2-degrees-C by surrounding the apparatus with ice.

During summers, business was so brisk that Mrs. Wilcox had two assistants and a messenger.

During the Brown trial, however, the state's most powerful Democratic newspaper, the Providence Daily Post, stated that Brown was a murderer, a man of blood, and that he and his associates, with the assistance of Republicans and Abolitionists, had plotted not only the liberation of the slaves but also the overthrow of state and federal governments.

During the month of November hardly a day passed when there was not some mention of John Brown in the Rhode Island newspapers.

During the poetically sterile years he was writing novels at the rate of almost one a year and was, in addition, burdened with bad health ( he spent six months in bed in 1881, too ill to do more than work slowly and painfully at A Laodicean ).

During the year that followed, Dick co-operated whole-heartedly with the dentist and was delighted with the final result achieved -- an upper row of strong straight teeth that completely changed his facial appearance.

During the trip Selkirk decided that the route through Illinois territory to Indiana and the eastern United States was the best route for goods from England to reach Red River and that the United States was a better source of supply for many goods than either Canada or England.

During the Civil War, Custer, who achieved a brilliant record, was made brigadier general at the age of 23.

During the first administration of Bienville, the peltry trade of the Mobile district was a lucrative source of revenue.

During Dulles's first two years in office, while Republicans ran the Senate, the Department was at the mercy of men who had thirsted for its blood since 1945.