By the mid-1970s, they had become one of the biggest-selling acts in music.

By the mid-1970s filmmakers avoided the genre in favor of using music by popular rock or pop bands as background music, partly in hope of selling a soundtrack album to fans.

By the mid-1970s, she slowed her musical activity and ceased acting to concentrate on being a wife and mother.

" By the mid-1970s ," according to The Continuum Political Encyclopedia of the Middle East, " the idea of Arab unity became less and less apparent in Arab politics, though it remained a wishful goal among the masses.

By the mid-1970s, stepped up economic development had raised traffic to capacity levels.

By the mid-1970s, however, the debate had moved on to other issues as monetarists began presenting a fundamental challenge to Keynesianism.

By the mid-1970s, commercial television abandoned their experiments with creating better children's programming.

By 1971, the CTW hired Hispanic actors, production staff, and researchers, and by the mid-1970s, Morrow reported that " the show included Chicano and Puerto Rican cast members, films about Mexican holidays and foods, and cartoons that taught Spanish words ".

By the mid-1970s, auto manufacturers modified the system so that a warning buzzer would sound for several seconds before turning off ( with the warning light ), regardless of whether the car was started.

By the mid-1970s, the only people allowed to administer caning were the Head Master and the Lower Master.

By the mid-1970s, free improvisation was truly a worldwide phenomenon.

By the mid-1970s, the ABC owned AM and FM stations, and the ABC Radio Network were the most successful radio operations in America in terms of audience and profits.

By the mid-1970s, hobbyists were experimenting with handheld radios and unauthorized American CB radios.

By the mid-1970s several European countries were in the process of introducing videotex and teletext services.

By the mid-1970s, the city had approximately 170 residents.

By the mid-1970s, WLS became conservative about introducing new songs, and many record promoters referred to the station as the " World's Last Station " to add new releases for airplay, usually only after the songs had reached the top 10 on Billboard's Hot 100.

By the mid-1970s McIlwaine's songs " Sliding ", " We the People " and " Losing You " were included on the compilation album, The Guitar Album.

By the mid-1970s, Watt and Boon formed a band called The Reactionaries with drummer George Hurley and vocalist Martin Tamburovich.

By the mid-1970s, the only stations broadcasting in black-and-white were a few high-numbered UHF stations in small markets, and a handful of low-power repeater stations in even smaller markets such as vacation spots.

By the mid-1970s, practically every large electronics company had teams working on bubble memory.

By January 1990, talk of the waning of conservative power and a possible socialist government had given way to the realization that, like the Lockheed affair of the mid-1970s, the Recruit scandal did not signal a significant change in who ruled Japan.

By the mid-1970s, Macbride had relocated to Virginia and was no longer practicing law full time.

By the mid-1970s McCluskey had formed Equinox, as bassist and vocalist, alongside schoolmate Malcolm Holmes on drums, while Humphreys was their roadie.

By the mid-1970s, it had become clear that passenger numbers were no longer increasing.

By 1968 he had founded Golem Press, which published most of his books, including The Health Hazards of Not Going Nuclear ( 1976 ), which argued in favor of nuclear power during the height of the anti-nuclear movement by contrasting the cost, in human terms, with the equivalent costs of the alternatives available.

By studying grassroots activism and the lived experiences of its participants, her high school students came to appreciate how African Americans worked to end Jim Crow laws in the 1950s.

By emphasizing his political activism over his puritanism and cultural conservatism they restored Savonarola ’ s voice for radical political change.

By 1975, Fifth Estate was lingering on — many staff had burnt out through too much activism and they had their share of internal disputes.

By the late 1960s, Crystal City would become the location of continued activism in the civil rights movement among its Mexican-American majority population, and the birthplace of the third party political movement known as La Raza Unida Party founded by three Chicanos, including José Ángel Gutiérrez over a conflict about the ethnicity of cheerleaders at Crystal City High School.

By 1982, the EPA had lost its credibility, but at the same time activism became more influential, and there was an increase in the funding and memberships of major non-governmental organizations ( NGOs ).

By contrast, Hildesheimer set the pattern for Modern Orthodox activism and institutions, and was noted for not being a sectarian, as was Hirsch.

By the 1980s, with the advent of AIDS, gay awareness and activism had grown significantly.

By the mid-1950s, Layton's activism and poetry had made him a staple on the CBC televised debating program " Fighting Words ," where he earned a reputation as a formidable debater.

By late 1976 moderate middle class opinion had turned away from the activism of the students, who had moved increasingly to the left.

By their own example of piety, prayer, and political activism, they have helped to spark a revival of Islamic observance in Turkey.

By 2005, activists at Camp Trans and MWMF had become frustrated with the boycott effort and felt that a combined effort of external and internal activism on the grounds of MWMF might be more effective in securing inclusion.

By the end of his stay in Paris, he likely became a supporter of reforms in France and Poland, and begun taking his first serious steps in political activism, through the involvement in the Quattuowirat, a group of magnates planning a ( never realized ) confederacy.

Meyer was known in conservative and libertarian circles for his nocturnal lifestyle – Buckley among others has recalled ( in Miles Gone By: A Literary Autobiography ) that Meyer would sleep by day and be on the phone by night on behalf of his journalism and activism.

By 1900 Pelletier was actively involved in feminism and socialist activism.

By 1990 Japan's international cooperation efforts had reached a new level of involvement and activism.

By the end of the 1960s, two developments had completely changed popular music: the birth of a counterculture, which explicitly opposed mainstream music, often in tandem with political and social activism, and the shift from professional composers to performers who were both singers and songwriters.