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 1940s Haley was considered one of the top cowboy yodelers in America as " Silver Yodeling Bill Haley ".

During the 1940s and 50s the attendance was often above 40, 000, and Charlton had one of the largest support bases in the country.

During the 1940s Alston also took occasional art classes studying under Alexander Kostellow.

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

During the 1940s and 1950s, Casablanca was a major centre of anti-French rioting.

During the 1940s The Living Theatre, Theatre of the Absurd, and the Downtown Theater movement all took root there, and it developed a reputation as a place where aspiring playwrights and emerging voices could showcase their work.

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 1940s, Cousteau is credited with improving the aqua-lung design which gave birth to the open-circuit scuba technology used today.

During the 1940s, Kirby, generally teamed with Simon, created numerous characters for that company and for the company that would become DC Comics.

During the 1940s, English knitting rose in popularity while Continental knitting fell.

During the 1940s and 1950s, critics focused on the technique of the poem and how it relates to the meaning.

During the late 1940s and into the 1950s, a production unit at Metro-Goldwyn-Mayer headed by Arthur Freed made the transition from old-fashioned musical films, whose formula had become repetitive, to something new.

During the late 1940s Jackson Pollock's radical approach to painting revolutionized the potential for all contemporary art that followed him.

During the latter half of the 1940s, Friedman began a collaboration with Anna Schwartz, an economic historian at the Bureau, that would ultimately result in the 1963 publication of a book co-authored by Friedman and Schwartz, A Monetary History of the United States, 1867 – 1960.

During this period, the logo of the club was the Beer Barrel Man, which had been used by the American Association Milwaukee Brewers since at least the 1940s.

During the 20th century the tradition was reinvigorated by Captain America and his fellow Invaders in the 1940s, who fought for the Allies of World War II.

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

During the early 1940s, Rickenbacker amps were sometimes repaired by Leo Fender, whose repair shop evolved into the Fender Electric Instrument Manufacturing Company.

During the 1930s and 1940s, Jews in Nazi-controlled states were made to wear yellow ribbons or stars of David, and were, along with Romas ( Gypsies ), discriminated against by the racial laws.

During the 1940s and 1950s, Frederick Terman, as dean of engineering and provost, encouraged faculty and graduates to start their own companies.

During the 1930s and 1940s, Coarsegold and Bass Lake were still populated with descendants of the miners and ranchers of the 19th century.

During the first half of the 1940s, Charteris cast Templar as a willing operative of the American government, fighting Nazi interests in the U. S. during World War II.

During most of the late 1930s and early 1940s Milligan performed as an amateur jazz vocalist and trumpeter before, during and after being called up for military service in the fight against Nazi Germany, but even then he wrote and performed comedy sketches as part of concerts to entertain troops.

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 1996, however, the economy collapsed due to an unstable and decentralised banking system, a wave of hyperinflation throughout several countries of Eastern Europe, and slow reforms, which led to an inflation rate of 311 % and the collapse of the lev.

During 1996, however, the economy collapsed due to the Bulgarian Socialist Party's slow and mismanaged economic reforms and an unstable and decentralised banking system, which led to an inflation rate of 311 % and the collapse of the lev.

During the 1950s, however, Graham began distancing himself from the older fundamentalism and, in preparation for his 1957 New York Crusade, he sought broad ecumenical sponsorship.

During the Napoleonic wars the Kingdom of the Netherlands adopted the French code civil in 1809, however the Dutch colonies in the Cape of Good Hope and Sri Lanka, at the time called Ceylon, were seized by the British to prevent them being used as bases by the French Navy.

During the winter, storms blowing from the Sahara sometimes form dense dust clouds that obscure the sun ; however, sunny days are the norm year round.

During dream sleep, in contrast, people who are awakened report rich and detailed experiences in which events form a continuous progression, which may however be interrupted by bizarre or fantastic intrusions.

During the Battle of the Bulge, however, the fuses became known as the American artillery's " Christmas present " for the German army because of their effectiveness against German personnel in the open, when they frequently dispersed attacks.

During a visit to England he complained of dizziness and had to have his blood pressure checked on August 29, 1959 ; however, before dinner at Chequers on the next day his doctor General Howard Snyder recalled Eisenhower " drank several gin and tonics, and one or two gins on the rocks ... three or four wines with the dinner ".

During World War I, however, Italy did not go to war immediately with her allies but stayed neutral.

During the past five hundred years, however, probably due to Confucian influence, inheritance by sons — but not always, or even most often, the eldest son — has been the norm.

During the Battle of Britain, however, British Hurricanes and Spitfires proved roughly equal to Luftwaffe fighters.

During the following years, however, Langdon's films went into decline without Capra's assistance.

During their second encounter in Siberia, however, the colonies are held hostage by Lady Une, who tries to force the Gundam pilots to surrender their mobile suits to OZ ; Heero, in response, self-destructs his Gundam, nearly killing himself in the process.

During the operation, however, Teg and his companions are ambushed.

During the winter monsoon, however, currents in the north are reversed.

During the inauguration ceremonies, however, neither Freed nor Pei was recognized for their role in the project.

During his term as president, however, Adams achieved little of long-term consequence in foreign affairs.

During Reconstruction, Davis remained silent ; however, he privately expressed opinions that federal military rule and Republican authority over former Confederate states was unjustified.

During the height of collectivization, however, people identified as kulaks were subjected to deportation and extrajudicial punishment.

During most of the 20th century, however, Germany remained its most important economic partner.

During many years of Livonian War ( 1558 – 1582 ), however, they suffered a decisive defeat by troops of Muscovite Russia in the Battle of Ergeme in 1560 and continued living under great threat.

During this time, however, the high mountains of most of modern Morocco remained unsubdued, and stayed in the hands of their Berber inhabitants.

During this time, however, the use of cantus firmi in works such as the parody mass tended to stretch the cantus firmus out to great lengths compared to the multivoice descant above it.

During the " sede vacante " period, the College of Cardinals is collectively responsible for the government of the Church and of the Vatican itself, under the direction of the Camerlengo of the Holy Roman Church ; however, canon law specifically forbids the cardinals from introducing any innovation in the government of the Church during the vacancy of the Holy See.