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, largely due to the ecumenical evangelism of Billy Graham, the terms evangelicalism and fundamentalism began to refer to two different approaches.

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 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 1960s the school was building a vast publishing and research network reaching across France, Europe, and the rest of the world.

By the beginning of the twentieth century, Steiner's interests turned to explicitly spiritual areas of research.

By the early 1960s, US research on the Nike Zeus missile system had developed to the point where small improvements would allow it to be used as the basis of a " real " ABM system.

By the late 20th century the recognition of practical knowledge as equal to academic knowledge led to the emergence of practice research and practice as research.

By selecting the best quality and most suitable research designs for meta-analysis they narrowed their focus down to 57 controlled trials.

* By supporting the participation of qualified scientists and technical personnel from developing countries in marine scientific research programmes and activities.

By 1950 systems based on this early research started to reach operational service, including the US Army's Nike Ajax, the Navy's " 3T's " ( Talos, Terrier, Tartar ), and soon followed by the Soviet S-25 Berkut and S-75 Dvina and French and British systems.

By agreement, British funding for research and development was limited to that required to modify the V bombers to take the missile, but the British were allowed to fit their own warheads and the Americans were given nuclear submarine basing facilities in Scotland.

By 1969, the debate over virtual memory for commercial computers was over ; an IBM research team led by David Sayre showed that their virtual memory overlay system consistently worked better than the best manually controlled systems.

By contrast, soft science is often used to describe the scientific fields that are more reliant on qualitative research, including the social sciences.

By the end of the 20th century, DNA sequencing had become available as a method of large scale research on phylogenetic relationships.

By actively processing evidence, making inferences, using common sense and personal experiences to inform their decision-making, research has indicated that jurors are effective decision makers that seek thorough understanding, rather than passive, apathetic participants unfit to serve on a jury.

By the late 1990s new research building on Mack's insights was beginning to mature, and after 2004, the U. S. military began once again to seriously consider the problems associated with asymmetric warfare.

By season 20, research had shown that children were able to follow a story, and the street scenes, while still interspersed with other segments, became evolving storylines.

By the early 20th century, research into the interaction of X-rays with matter was well underway.

Already he had relinquished his official post as Lecturer in Experimental Psychology in favour of Dr. Charles Samuel Myers, and now held only a lectureship on the physiology of the special senses .< ref name =" ajop50 "> By degrees he became more absorbed in anthropological research.

By about 1990, the fluctuating trends began to diminish, being replaced by outcomes-based research.

By 1968, the FYDP covered ten military areas: strategic forces, general purpose forces, intelligence and communications, airlift and sealift, guard and reserve forces, research and development, central supply and maintenance, training and medical services, administration and related activities, and support of other nations.

By contrast, however, more research by the Parents Television Council, suggests that prevalence of smoking on television is currently rare.

By the mid-1980s, Irving had not had a successful book in years, and was behind schedule in writing the first volume of his Churchill series, the research for which had strained his finances.

By this time, Southampton had research income that represented over half of the total income, which remains one of the highest proportions of income derived from research activities of British Universities.

By this time, he was a well-known and revered figure, and the appointment was meant to free him from the labour of teaching and to facilitate his research.

By the late 1970s, stress had become the medical area of greatest concern to the general population, and more basic research was called for to better address the issue.