By the 1930s, a series of favorable biographies enhanced his prestige.

By the 1930s, statisticians and models built on statistical reasoning had helped to resolve these differences and to produce the neo-Darwinian modern evolutionary synthesis.

By the 1930s boats built of all steel from frames to plating were seen replacing wooden boats in many industrial uses, even the fishing fleets.

By 1921 he was the majority owner, maintaining that status into the 1930s.

By the late 1930s, Thomas was embraced as the " poetic herald " for a group of English poets, the New Apocalyptics.

By the 1930s, Ben Duncan and others popularized streamlined trap kits leading to a basic four piece drum set standard: bass, snare, tom-tom, and floor tom.

By the 1930s, the five-line cinquain verse form became widely known in the poetry of the Scottish poet William Soutar.

Despite the revivalists ' various political views and different opinions regarding the nature of authentic folk music, they all shared an understanding of Americanism that grounded the nation's identity in cultural pluralism and political democracy " By the end of the 1930s they along with the musicians and others had turned American folk music into a social movement.

By the 1930s, Italian fascism had created a review board for popular culture.

By the 1930s it was in wide use.

By the late 1930s and the 1940s, Italian Fascism completely denounced capitalism as an obsolete and oppressive system, Mussolini in 1940 at the entry of Italy into World War II, said:

By the 1930s, several faith healers drew large crowds and established worldwide followings.

By the early 1930s Gardner's activities had moved from those exclusively of a civil servant, and he began to think of himself more as a folklorist, archaeologist and anthropologist.

By the 1930s the place would evolve to become her greatest legacy, the Whitney Museum of American Art, on the site of today's New York Studio School of Drawing, Painting and Sculpture.

By the 1930s, Genosha Bay later became a United States extraterritorial prison which hold prisoners of the worse cases from around the world and was notorious for practicing inhumane punishments on its prisoners ranging from sleep deprivations and water torture.

By the end of the 1930s, the PNH was the only organized functioning political party in the nation.

By the late 1930s it had become dangerous to be publicly associated with religion.

By the 1930s, the guitar began to displace the banjo as the primary chordal rhythm instrument in jazz music, because the guitar could be used to voice chords of greater harmonic complexity, and it had a somewhat more muted tone that blended well with the upright bass, which, by this time, had almost completely replaced the tuba as the dominant bass instrument in jazz music.

As for the contradiction between German rearmament and his message of peace, Ribbentrop argued to whoever would listen that the German people had been “ humiliated ” by the Versailles treaty, that Germany wanted peace above all, and German violations of Versailles were part of an effort to restore Germany's " self-respect " By the 1930s, much of British opinion had been convinced that the treaty was monstrously unfair and unjust to Germany, so as a result, many in Britain like Thomas Jones were very open to Ribbentrop ’ s message that if only Versailles could be done away with, then European peace would be secured.

By the later 1930s government began to intrude on ordinary Africans through marketing controls, stricter educational supervision, and land changes.

By the 1930s, approximately 30, 000 white settlers lived in the area and gained a political voice because of their contribution to the market economy.

By 1870 Liberia had sunk into financial crisis, which dragged on into the 1930s.

By the late 1930s the Luftwaffe had no clear purpose.

By the 1930s it was clear that if the Soviet cinema was to compete with its Western counterparts, it would have to give audiences what they wanted: the glamour and fantasy they got from Hollywood.

By the 1930s, many revisions of the rules developed that were substantially different from Babcock's classical version ( including some that were considered fundamentals in other variants, such as the notion of a standard hand ).

By 2008, the once-profitable Grass Valley division was operating at a net loss of over $ 100 million per year, and on January 29, 2009, Thomson announced that they were putting the Grass Valley division up for sale.

) By the time the streetcar pulled away, he had fallen in love with Paula.

By 1890, there were more than 20 private companies operating streetcar lines in Fort Worth.

By the end of 1899 the streetcar reached out along Mayfield Road to the old village of Fairmount.

By 1938, Pacific City Lines ( PCL ) was formed to purchase streetcar systems in the western United States.

By 1947 the company owned or controlled more than 100 electric streetcar systems in 45 cities including, but not limited to, Baltimore, St. Louis, Salt Lake City, Los Angeles, Oakland, Philadelphia and Tulsa.

By 1900, it had acquired virtually all of the rapid transit and streetcar operations in its target area:

By June 6, 1896, an interurban streetcar line — the Mount Vernon, Alexandria and Washington Railway — also crossed the bridge.

By the early 1890s, streetcar lines reached the park, carrying nearly 3 million visitors a year, and after the closing of the city zoo, its animals were moved to the park during this time.

By 1900, the rough frontier settlement of wooden buildings and sandy streets had been transformed into a bustling town with brick buildings and streets, a streetcar line, and many social and cultural opportunities.

By the early 1900s, downtown Columbus residents and professors from Ohio State University had built summer homes in Clintonville and the surrounding farmland was developed into housing developments shortly after the extension of the streetcar lines northward from Columbus.

By 1900, full streetcar service was in the area, led by the Charles River Street Railway, which built its first railway through Inman Square in 1881.

By 1912, 45 minute streetcar service from Van Nuys to downtown and the " no speed limit " paved road ( if you could get your " Model A " to do 30 mph ) were key selling points.

By 1890, electric streetcar lines were replacing horse-drawn ones in cities of all sizes, allowing the lines to be extended and fostering a tremendous amount of suburban development.

By the 1940s, streetcar ridership had dropped dramatically, and few subdivisions were being built with streetcars or mass transit in general in mind.

By the 1950s, nearly all streetcar lines had stopped running, and were instead served by buses.

By the next year it had consolidated ownership of a number of horse-drawn streetcar lines, composing a fleet of 7816 horses and 1480 rail vehicles.

By this time the Brooklyn City operated 27 streetcar lines.

By 1933, the TTC introduced the local bus and streetcar stop design, a white pole with a red band on the top and bottom.

By 1925, all streetcar tracks had been removed from the central part of downtown, and tracks along Atlantic Avenue north of Summer Street ( Dewey Square ) took streetcars around downtown.

By 1895 a streetcar line had been extended to the park, allowing easier access.