During the 1970s and 1990s, there was an epistemological shift away from the positivist traditions that had largely informed the discipline.

During the post-World War I period ski-lifts were built in Swiss and Austrian towns to accommodate winter visitors, but summer tourism continued to be important ; by the mid-20th century the popularity of downhill skiing increased greatly as it became more accessible and in the 1970s several new villages were built in France devoted almost exclusively to skiing, such a Les Menuires.

During the 1960s and 1970s, the city gained a reputation as a center for liberal politics.

During the 1960s and 1970s, the city gained a reputation as an important center for liberal politics.

During much of the 1970s Roma's appearance in the top half of Serie A was sporadic.

During their heyday from the late 1970s to the mid-1990s, most BBSes were run as a hobby free of charge by the system operator ( or " SysOp "), while other BBSes charged their users a subscription fee for access, or were operated by a business as a means of supporting their customers.

During the 1970s the Air Force was at the apogee of its power, possessing at least 500 modern combat aircraft in its inventory.

During the early 1970s, Manchester United were no longer competing among the top teams in England, and at several stages were battling against relegation.

During the Orioles ' heyday in the 1970s, a club song, appropriately titled " Orioles Magic ", was composed, and played when the team ran out until Opening Day of 2008.

During the late 1970s and early 1980s, the site hosted Creative Time's landmark Art on the Beach sculpture exhibitions.

During the 1970s, he made guest-appearances on TV series such as Ironside, Insight, Barbary Coast, The Love Boat, Medical Center, four episodes of Love, American Style, Fantasy Island, and two episodes each of The Streets of San Francisco, and Rod Serling's Night Gallery.

During the 1970s the " small press " culture grew and diversified.

During the 1970s and 1980s it was also used to test the ability of containers of radioactive material to withstand impacts and other accidents.

During the 1970s and 1980s, the Bengals were a perennial playoff contender and they won AFC championships in and, but lost Super Bowls XVI and XXIII to the San Francisco 49ers.

During the 1960s and 1970s, the CPC experienced a significant ideological breakdown with the Communist Party of the Soviet Union under Nikita Khrushchev, and later, Leonid Brezhnev.

During the 1970s the relative number of communists in Republics of the Soviet Union was as follows:

During the 1970s, a growing number of Canadian stations pushed American channels off the systems, forcing several to expand beyond the original 12-channel system configurations.

During the 1970s producers started to reduce the quantity of white grapes in Chianti.

During the 1970s, modern dramatic directors made some of their first films.

During the Portuguese Colonial War in the 1960s and the 1970s, the Portuguese Army created an experimental horse platoon, to combat the guerrillas in eastern Angola.

During the late 1970s he acquired a large public audience as a critic of the then Labour government's disregard of civil liberties ; his writings from this time are collected in Writing By Candlelight ( 1980 ).

During the 1950s, 1960s and 1970s, several events occurred which raised the public awareness of harm to the environment caused by man.

During the 1960s and 1970s hundreds of fossils were found, particularly in East Africa in the regions of the Olduvai gorge and Lake Turkana.

During the 1970s and ' 80s, Cassandra B. Whyte did significant educational research studying locus of control as related to the academic achievement of students pursuing higher education coursework.

During the early 20th century, comic strips were widely associated with publisher William Randolph Hearst, whose papers had the largest circulation of strips in the United States.

During the XII and XIII centuries many encyclopedic works have been written. Among them De proprietatibus rerum by Bartholomeus Anglicus ' ( 1240 ) was the most widely read and quoted encyclopedia in the High Middle Ages while Vincent of Beauvais's Speculum Majus ( 1260 ) was the most ambitious encyclopedia in the late-medieval period at over 3 million words.

During World War II and through the 1950s, high frequency (" short wave ") radio was widely used for military and diplomatic communication, and could be intercepted at great distances.

During the classic era, his work, either as author or screenwriter, was the basis for seven films now widely regarded as film noirs, including three of the most famous: High Sierra ( 1941 ), This Gun for Hire ( 1942 ), and The Asphalt Jungle ( 1950 ).

* During the French Revolution, people widely destroyed religious and monarchical imagery.

During its 23 years, it was the most widely used format for floating-point computation.

During the mid to late 1990s, " the launch of each successive round of technology it's been expected to occupy a headlining position ", with the Quake III engine being most widely adopted of their engines.

* 2009 – During the Iranian election protests, the death of Neda Agha-Soltan is captured on video and spreads virally on the Internet, making it " probably the most widely witnessed death in human history ".

During the rest of the decade, they would go on to star together in Out to Sea, Grumpier Old Men and the widely panned The Odd Couple II.

During this period many of Britain ’ s unprofitable railways were closed down, as most routes in the capital were widely used the Beeching Axe had little effect.

During the period of German Empire the Germanisation policies in Masuria became more effective ; children using Polish in playgrounds and classrooms were widely punished by corporal punishment, authorities tried to appoint Protestant pastors who would use German instead of Polish which resulted in protests of local population.

During this period, the portrayal of opium in literature became squalid and violent, British opium trade was largely supplanted by domestic Chinese production, purified morphine and heroin became widely available for injection, and patent medicines containing opiates reached a peak of popularity.

During the Ming Dynasty ( 1368 – 1644 ), characters from popular novels such as the Water Margin were widely featured on the faces of playing cards.

During the late 19th century, Ernst Haeckel's recapitulation theory, or " biogenetic fundamental law ", was widely accepted.

During the years 550 to 330 BC, coinciding with the sovereignty of the first Persian Empire over the Middle East area, especially the whole part of the Persian Gulf and some parts of the Arabian Peninsula, the name of " Pars Sea " is widely found in the compiled written texts.

During the early 20th century, the phrase " The White Man's Burden " was widely used to justify imperialist policy as a noble enterprise.

During the period, secular music had an increasing distribution, with a wide variety of forms, but one must be cautious about assuming an explosion in variety: since printing made music more widely available, much more has survived from this era than from the preceding Medieval era, and probably a rich store of popular music of the late Middle Ages is irretrievably lost.

During the 1970s and 1980s, RPN was even known to the general public, as it was widely used in handheld calculators of the time – for example, the HP-10C series and Sinclair Scientific calculators.

During the late 1980s and early 1990s, shareware software was widely distributed over bulletin board systems globally and on diskettes ( and, subsequently, CD-ROMs ) by commercial shareware distributors who produced catalogs describing thousands of public domain and shareware programs.

During the 1930s French pioneers Philippe Tailliez and Jacques-Yves Cousteau used and widely tested the Le Prieur apparatus before Émile Gagnan and Cousteau worked together on the invention of the modern regulator in 1943.

During the 19th century and the early 20th century, walruses were widely hunted and killed for their blubber, walrus ivory, and meat.

During this period the number of Chardonnay plants increased fivefold and by 1990 it was the most widely planted white wine grape in Australia and third most planted overall behind Shiraz and Cabernet Sauvignon.

During this time he lectured widely, including at St Dunstan-in-the-West.

During the second half of the 20th century, the adverse health effects of tobacco smoking started to become widely known and text-only health warnings became commonplace on cigarette packets.