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 this period he published 18 plays and 3 novels, including the murder mystery The Red House Mystery ( 1922 ).

During Darnley ’ s lifetime there was little public knowledge of the urn, and no record of a published photograph exists before 1921.

During his archiepiscopate, he built and embellished churches in his diocese, and worked to improve his clergy by holding a synod which published regulations for the priesthood.

During this term Johnson also made a concerted effort to increase his sphere of interactions ; his higher profile was exemplified by a biographical sketch published in the New York Times in May 1849, describing him as an excellent committee worker and investigator.

During that period he also released his work on Bertini type theorems contained in EGA 5, published by the Grothendieck Circle in 2004.

During this period he also completed two woodcut series, the Great Passion and the Life of the Virgin, both published in 1511 together with a second edition of the Apocalypse series.

" During 1903 – 1930, he published his critical edition of Manilius's Astronomicon in five volumes.

During grand jury testimony in December 2003 – which was illegally leaked to the San Francisco Chronicle and published in December 2004 – Giambi allegedly admitted to using many different steroids, including fertility drugs ( which could account for his declining health in the past few years ).

During World War II, The Beano and The Dandy were published on alternating weeks because of paper and ink rationing.

During this time he wrote regular dispatches to his superiors in Florence, many of which have survived and are published in Machiavelli's Collected Works.

During that year Eisenhower's memoir, Crusade in Europe, was published.

During November 1915 Einstein published several papers culminating in " The Field Equations of Gravitation " ( see Einstein field equations ).

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 same year, British author George MacDonald Fraser published Flash for Freedom !, the third novel in the Flashman series that was set partially in Dahomey.

During the 1920s writers such as Clare Winger Harris and Gertrude Barrows Bennett published science fiction stories written from female perspectives and occasionally dealt with gender and sexuality based topics.

" During this 8 year span he and his fellow researchers published a series of papers in which they discussed the use of genetic algorithms to evolve neural structures inside 3D cellular automata.

During this time he also published a catalog of papers in his field, Bibliographia Zoologiae et Geologiae, in four volumes between 1848 and 1854.

During the Middle Ages, Saint Jerome was considered the author of all the biographies up until those of Pope Damasus I ( 366 – 383 ), based on an apocryphal letter between Saint Jerome and Pope Damasus published as a preface to the Medieval manuscripts.

During his imprisonment he has published several books and other commentaries, notably Live from Death Row ( 1995 ).

During the Civil War period, he published several theoretical economic works, including the popular primer The ABC of Communism ( with Yevgeni Preobrazhensky, 1919 ), and the more academic Economics of the Transitional Period ( 1920 ) and Historical Materialism ( 1921 ).

During the Renaissance and Baroque the myth regained publicity and Luís de Góngora published his own " Fábula de Polifemo y Galatea " in 1613.

During this period, Gosse made a special study of sea anemone ( Actiniae ) and in 1860 published Actinologia Britannica.

During the war of liberation ( 1813 – 1814 ), Feuerbach showed himself an ardent patriot, and published several political brochures.

During the early 1990s, S. Christopher Bennett also published several major papers reviewing the anatomy, taxonomy and life history of Pteranodon.

During 1977, Czernilofsky published research that used affinity labeling to identify tRNA-binding sites on rat liver ribosomes.