By the mid-1950s the system was being used in at least sixty British libraries and in a hundred by the 1970s.

By the mid-1950s, Bogart's health was failing.

By the mid-1950s the Chinese army had entered the north-east portion of Ladakh.

By the mid-1950s mambo mania had reached fever pitch.

By the mid-1950s, all the great names were gone ; only C. B.

By the mid-1950s, nine kwans had emerged.

By the mid-1950s, Silver City had become the biggest air cargo carrier in the United Kingdom while annual passenger numbers at its " Ferryfield " base had reached ¼ of a million.

By the mid-1950s the day was virtually ignored, even by churches and veterans ' organizations.

By the mid-1950s, Basie's band had become one of the preeminent backing big bands for some of the most prominent jazz vocalists of the time.

By the mid-1950s the Tōkaidō Line was operating at full capacity, and the Ministry of Railways decided to revisit the Shinkansen project.

By the mid-1950s, rock and roll emerged as a defined musical style in the United States, deriving most directly from the rhythm and blues music of the 1940s, which itself developed from earlier blues, boogie woogie, jazz, and swing music, and was also influenced by gospel, country and western, and traditional folk music.

By the mid-1950s, the people's fears were confirmed.

By the mid-1950s, the building had been expanded, and became an elementary school.

By the early 20th century, tobacco became king, and by the mid-1950s, Fairmont was considered one of the major tobacco markets in the world.

By the mid-1950s, department store heiress and wife of the publisher of the Los Angeles Times, Dorothy Buffum Chandler became the de facto leader of the orchestra's board of directors.

By the mid-1950s, Capitol had become a huge company, concentrating on popular music.

By the mid-1950s very few narrowboats traded south of Napton and the southern section was at one point being threatened with closure, although the northern section ( Napton to Coventry ) remained well-used by commercial traffic until the 1960s.

: By the mid-1950s, post-WWII Americans were beginning to relax and enjoy both their new economic and baby booms as their offspring which were just entering their teens.

By the mid-1950s, the bulk of the information cadaver testing could provide had been harvested.

By the mid-1950s the research facilities in the US were second to none, and scientists were drawn to the US for this reason alone.

By the mid-1950s the title was the best selling comic book in the United States, with a monthly circulation of over three million.

By 1946, the airport was already hosting more than a quarter of a million passengers a year, growing to more than a million by the mid-1950s.

By the mid-1950s, Horne was disenchanted with Hollywood and increasingly focused on her nightclub career.

By the mid-1950s, with television and paperback books drawing readers away from comic books in general and superheroes in particular, interest in Quality's characters had declined considerably.

By the mid-4th century however the assembly's judicial functions were largely curtailed, though it always kept a role in the initiation of various kinds of political trial.

By December 1790 Phillip was ready to return to England, but the colony had largely been forgotten in London and no instructions reached him, so he carried on.

By the mid late 18th century developments in cheaper zinc distillation such as John-Jaques Dony's horizontal furnaces in Belgium and the reduction of tariffs on zinc as well as demand for corrosion resistant high zinc alloys increased the popularity of speltering and as a result cementation was largely abandoned by the mid 19th century.

The money was devoted largely to developing “ technical advice on the conduct of defoliation and anti-crop activities in Southeast Asia .” By the end of fiscal year 1962, the Chemical Corps had let or were negotiating contracts for over one thousand chemical defoliants.

By 1857, tensions had again escalated between Mormons and other Americans, largely as a result of accusations involving polygamy and the theocratic rule of the Utah territory by Brigham Young.

By 1857, tensions had again escalated between Mormons and other Americans, largely as a result of church teachings on polygamy and theocracy.

By the early 2000s, the CD largely replaced the audio cassette player as standard equipment in new automobiles, with 2010 being the final model year for any car in the US to have a factory-equipped cassette player.

By the 18th century, the cello had largely replaced other mid-sized bowed instruments.

By the First World War, the Liberal Party had largely abandoned classical liberal principles.

( By 1653 Cromwell and the Army had largely eliminated these threats ).

By Stalin's death in 1953, the Central Committee had become largely a symbolic organ, which was responsible to the Politburo, and not the other way around.

By the time of the 28th Congress of the CPSU in July 1990, the party was largely regarded as being unable to lead the country and had, in fifteen republics, split into opposing factions favouring either independent republics or the continuation of the Soviet Union.

By 1921, this was to rise to 110, 000, largely through the development of bidonvilles.

By the end of World War II eugenics had been largely abandoned.

By the end of the sixteenth century this had largely displaced buon fresco, and was used by painters such as Gianbattista Tiepolo or Michelangelo.

By placing the molecules in wells in the gel and applying an electric field, the molecules will move through the matrix at different rates, determined largely by their mass when the charge to mass ratio ( Z ) of all species is uniform, toward the ( negatively charged ) cathode if positively charged or toward the ( positively charged ) anode if negatively charged.

By the late 1990s, Gopher had largely ceased expanding.

By 1969, there were dozens of homophile organizations and publications in the U. S, and a national organization had been formed, but they were largely ignored by the media.

By the 1920s, the diatonic harmonica had largely reached its modern form.

By the 1830s, the aquatint process was largely superseded by lithography.

By the middle of the 17th century, plays such as Robert Davenport's King John and Matilda, although based largely on the earlier Elizabethan works, were transferring the role of Protestant champion to the barons and focusing more on the tyrannical aspects of John's behaviour.

By 1933, it had been transformed into a sculptural environment, and three photos from this year show a series of angled surfaces aggressively protruding into a room painted largely in white, with a series of tableaux spread across the surfaces.

By the end of the 20th century, almost the only steam power still in regular use in North America and Western European countries was on heritage railways largely aimed at tourists and / or railroad hobbyists, known as ' railfans ' or ' railway enthusiasts ', although some narrow gauge lines in Germany which form part of the public transport system, running to all-year-round timetables retain steam for all or part of their motive power.

By the end of the sixteenth century this had largely displaced the buon fresco method, and was used by painters such as Gianbattista Tiepolo or Michelangelo.