By the 1960s and ' 70s, interviewing began to be employed more often when historians investigated history from below.

By the late ' 70s the " classic " period of symphonic prog was coming to an end.

By the late 1960s the population had swelled by over 20 percent and increased further in the 70s.

By the late 1990s only a fraction of the corps that existed in the 60s and 70s remained, although several new corps, some of which have become very successful, did start up along the way.

By the mid -' 70s, Matchbox was again a force on the world market, having completed the transition and having even updated its line to include some fantasy vehicles.

By the 1960s and 70s, there was a move from batch processing to online modes, from mainframe to mini and microcomputers.

By the end of the ' 70s, most music genres, including soul, had been disco-influenced.

By the late 70s, a breakaway faction of TEAM, comprising provincial NDP supporters and led by future premier Michael Harcourt formed an uneasy electoral alliance with COPE, from which both parties benefited.

By the early 70s, Loblaw was struggling under the weight of too much

By the late ' 70s, the Lincoln Gazette was available in Lincoln, Omaha and communities across Nebraska.

By the end of the 1970s, the revolutionary upsurge of the 60s and 70s had subsided.

By the mid ' 70s, Westward had taken advantage of this opportunity by finding a small niche producing adult education programmes for the ITV network.

By the " early ' 70s, the lines between blues rock and hard rock were barely visible ", as bands began recording rock-style albums.

By the last 70s mission, T. K.

By 1999-2000, after a continued airing of more than 25 years, Jabberwocky ( along with classic airings of another WCVB ' 70s original, The Nature World of Captain Bob ) vanished off the station's schedule.

By the early ' 70s, he had laid the groundwork for his current style which incorporated elements drawn from musicians as wide-ranging as Django Reinhardt and Jimi Hendrix.

By the 1990s, GM's program of sharing components across divisions that began in the 70s as a way to cut costs grew into a marketing problem.

By the late ' 70s and early ' 80s Mann had become active in the international anti-apartheid movement and was banned from entering South Africa, the country in which he had been born.

By the end of the ' 70s, her sales were declining — in 1980 she only had two hits.

By contrast, topical themes that seemed so relevant in the 1960s and 70s became old and distants.

By the 1960s and 70s, Gliha was using the motif to investigate the depth of the picture's space, the effect of light on the ethereal quality of the atmosphere and colour accents upon the plasticity of the form.

By Late 70s and early 80s Zinga completely turned into a family based musical band and was often compared to the famous bands in the west like BeeGees, Beatles, Abba & Boney M.

By the late ' 70s, Ramada ranked as the second largest hotel chain in the U. S. behind industry leader Holiday Inn.

By the 1960s and ' 70s, as industry fled the city, so did the white middle class, leaving behind a poor population.

By the second day Michelangelo began to worry ; ;

By the mid-19th century scientists began to arrive en masse to study the geology and ecology of the region.

By the age of twenty, Ferdinando I, Duke of Mantua, began commissioning works from him, and he was also employed by local jewelers for figurative designs.

By 1946, as the growing fellowship quarreled over structure, purpose, and authority, as well as finances and publicity, Wilson began to form and promote what became known as AA's Twelve Traditions, guidelines for an altruistic, unaffiliated, non-coercive, and non-hierarchical structure that limited AA's purpose to only helping alcoholics on a non-professional level while shunning publicity.

By the 1960s, as VFL clubs increasingly recruited the best players from other states, they began to dominate the competition and the last match was played in 1976, with North Adelaide being the last non-Victorian winner in 1972.

By 1906, he was studying music full-time ; by 1907, he began composition lessons.

By the 16th century, a cappella polyphony had further developed, but gradually, the cantata began to take the place of a cappella forms.

By the 3rd century BC, the rival armies of Carthage and Rome began to invade and fight for control of the Iberian Peninsula.

By the age of 64 after forty years imprisonment ` Abdu ’ l-Bahá was freed by the Young Turks and he and his family began to live in relative safety.

By the time World War I began, attempts to use anthrax were directed at animal populations.

By the early 20th century the Liberals stance began to shift towards " New Liberalism ", what would today be called social liberalism: a belief in personal liberty with a support for government intervention to provide minimum levels of welfare.

By the age of four, he was able to play 40 pieces on the piano ; his mother began formally teaching him the next year.

By the early 1910s, Jefferson began traveling frequently to Dallas, where he met and played with fellow blues musician Lead Belly.

By the 1890s, the portion from 23rd Street to 34th Street was so brightly illuminated by electrical advertising signs, that people began calling it " The Great White Way.

By winning operationally, strategically it could not keep up the momentum as the superiority of the Soviet Union's industrial base and economy began to take effect.

By the early 2000s ( decade ), however, the university quietly reexamined its position on accreditation as degree mills proliferated and various government bureaucracies, such as law enforcement agencies, began excluding BJU graduates on the grounds that the university did not appear on appropriate federal lists.

By then, early dance camps, retreats, and weekends had emerged, such as Pinewoods Camp, in Plymouth, Massachusetts, which became primarily a music and dance camp in 1933, and NEFFA, the New England Folk Festival, also in Massachusetts, which began in 1944.

By the 16th century, Spanish conquistadors began to subdue and colonize the region of present-day Chile, and the territory became a colony from 1540 to 1818, when it gained independence from Spain.

By the end of the 2nd millennium BC, the Zhou Dynasty began to emerge in the Yellow River valley, overrunning the territory of the Shang.

By the fourth century, however, " confessors "— people who had confessed their faith not by dying but by word and life — began to be venerated publicly.

By this time his interest in writing fiction began to lessen and he turned to creating sculptures from soft rock such as soapstone.

By the 1990s Conservative Judaism continued to flourish, yet dichotomies of practice and belief, which had been present for years, began to formulate.

By the 1960s, college cheerleaders began hosting workshops across the nation, teaching fundamental cheer skills to high-school-age girls.

By 1906, Beaux began to live year-round at Green Alley, in a comfortable colony of " cottages " belonging to her wealthy friends and neighbors.

By August 1954 Malenkov's role as de facto head of government was over ; Nikolai Bulganin began signing Council of Ministers decrees ( a right beholden to the Chairman ) and the Presidium gave in to Khrushchev's wishes to replace Malenkov.