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 the first 11 months of 2006, U. S .- Armenian trade totaled $ 152. 6 million.

During the Cold War, U. S. Navy P-3 Orion antisubmarine warfare squadrons patrolled the North Atlantic Ocean for Soviet Navy submarines and surface warships.

During the operation, two U. S. helicopters were shot down by rocket-propelled grenade attacks to their tail rotors, trapping soldiers behind enemy lines.

During its first two seasons, it was the number one program in the U. S. During its second season, it earned some of the highest ratings ever recorded for a half-hour sitcom.

During World War II it was occupied by the U. S. military.

During a recent UN inspection, a U. S. Department of Defense evaluation team found Burkina's Laafi battalion fit to deploy to Sudan.

During his speech, Ahmadinejad criticized Israel's policies towards the Palestinians ; called for research on the historical accuracy of the Holocaust ; raised questions as to who initiated the 9 / 11 attacks ; defended Iran's nuclear power program, criticizing the UN's policy of sanctions on his country ; and attacked U. S. foreign policy in the Middle East.

During the Reagan administration, conservatives also supported the so-called " Reagan Doctrine " under which the U. S., as part of a Cold War strategy, provided military and other support to guerrilla insurgencies that were fighting governments aligned with the Soviet Union.

During Desert Shield, the U. S. Navy sortied additional carriers to augment the on station assets eventually maintaining six carriers for Desert Storm.

During the 1992 U. S. presidential election campaign, the civil rights of gays and lesbians, particularly their open service in the military, attracted some press attention, and all candidates for the Democratic presidential nomination supported ending the ban on military service by gays and lesbians,

During the 1993 policy debate, the National Defense Research Institute prepared a study for the Office of the Secretary of Defense published as Sexual Orientation and U. S. Military Personnel Policy: Options and Assessment.

During the 20th century Italian universities introduced more advanced research degrees, such as the Ph. D., and now that it is part of the E. U. Bologna Process, a new three-year first degree, or “ laurea ” ( equivalent to a B. A.

During a trip to Iraq in June 2011, he said that Iraq should pay back the U. S. for all the money it had spent since the invasion, when it becomes a wealthy country.

During his service in both world wars, Armstrong gave the U. S. military free use of his patents.

During Hillary Clinton's campaign for election to the U. S. Senate, the couple's daughter Chelsea took over much of the First Lady's role.

* 1945 – World War II: During the Battle of Iwo Jima, a group of United States Marines and a commonly forgotten U. S. Navy Corpsman, reach the top of Mount Suribachi on the island and are photographed raising the American flag.

During the U. S. Presidential Election of 1864, Douglass supported John C. Frémont.

During World War II, anthropologist Margaret Mead was working in Britain for the British Ministry of Information and later for the U. S. Office of War Information, delivering speeches and writing articles to help the American soldiers better understand the British civilians, and vice versa.

For example, one key meeting location was in the U. S. at the Dakin Building, then owned by American philanthropist Henry Dakin, who had extensive Russian contacts: During the late 1980s, as glasnost and perestroika led to the liquidation of the Soviet empire, the Dakin building was the location for a series of groups facilitating United States-Russian contacts.

During the Spanish-American War, the U. S. fleet attacking Santiago retreated to Guantánamo's excellent harbor to ride out the summer hurricane season of 1898.

During World War II Marcuse first worked for the U. S. Office of War Information ( OWI ) on anti-Nazi propaganda projects.

During the U. S. intervention in Afghanistan, he fought against the Taliban within the United Islamic Front for the Salvation of Afghanistan ( Northern Alliance ) and thus regained his position as Governor of Herat.

During the early 1990s the IETF changed institutional form from an activity of the U. S. government to an independent, international activity associated with the Internet Society.

* 1920 – During the U. S. Republican National Convention in Chicago, U. S. Republican Party leaders gathered in a room at the Blackstone Hotel to come to a consensus on their candidate for the U. S. presidential election, leading the Associated Press to first coin the political phrase " smoke-filled room ".