Since the 1960s, composite airframes and quieter, more efficient engines have become available, and Concorde provided supersonic passenger service for more than two decades, but the most important lasting innovations have taken place in instrumentation and control.

Since the 1960s, the islands have diversified away from their traditionally agriculture-based economy towards tourism and financial services, becoming one of the wealthiest areas in the Caribbean.

Since the 1960s, the bass guitar has largely replaced the double bass in popular music as the bass instrument in the rhythm section.

Since the 1960s, blackjack has been a high profile target of advantage players, particularly card counters, who track the profile of cards that have been dealt and adapt their wager and playing strategies accordingly.

Since the 1960s / 1970s, Blissymbols have become popular as a method to teach disabled or handicapped people to communicate.

Since the 1960s, applied ethics has revived the ideas of casuistry in applying ethical reasoning to particular cases in law, bioethics and business ethics, so the reputation of casuistry is somewhat rehabilitated.

Since the international adoption of the MKS standard in the 1940s and the SI standard in the 1960s, the technical use of CGS units has gradually declined worldwide, in the United States more slowly than elsewhere.

Since the early 1960s, it has been known that volcanism has occurred on other planets and moons in the Solar System.

Since then McLean has stated that the lyrics are also somewhat autobiographical and present an abstract story of his life from the mid-1950s until the time he wrote the song in the late 1960s.

Since at least the 1960s, macroeconomics has been characterized by further integration as to micro-based modeling of sectors, including rationality of players, efficient use of market information, and imperfect competition.

Since at least the 1960s, when Marc Bloch's Feudal Society ( 1939 ) was first translated into English in 1961, many medieval historians have included a broader social aspect that includes not only the nobility but all three estates of the realm, adding the peasantry bonds of manorialism and the estates of the Church ; this is sometimes referred to as " feudal society " since it encompasses all members of society into the feudal system.

Since the 1960s, West and later reunified Germany has been attracting migrants primarily from Southern and Eastern Europe as well as Turkey, many of whom ( or their children ) over time acquired German citizenship.

Since the 1960s rather complex mathematical models have been developed, facilitated by the availability of high speed computers.

Since the 1960s, academic history has seen the emergence of new approaches and topics such as social history, demographic history, ethnic history, women's history, environmental history and cultural history.

Since the 1960s and 1970s a large body of scholarship has provided evidence and analysis of the extent to which heterosexuality and homosexuality are socially organized and historically changing.

Since the 1960s various Scottish shops and manufacturers have created vegetarian haggis, substituting various pulses, nuts and vegetables for the meat in the dish.

Since the 1950s and 1960s in particular, the Irish have become assimilated into the British population.

Since the early 1960s, it has published 12 volumes, the first in 1971 and most recently in 2008 ; three more volumes are planned.

Since the 1960s, he has worked with public interest, consumer, family farm, environmental and community organizations at the local, state and national level.

Since the 1960s, orca has steadily grown in popularity ; both names are now used.

Since the 1960s, a theory based on Linear B phonetic values suggests that Linear A language could be an Anatolian language, close to Luwian.

Since the beginning of the 1960s Ladoga has become considerably eutrophicated.

Since the 1960s, the mainland population has declined by 60-70 %; though there has been a small increase on Motunau Island.

Since the 1960s, the number of people claiming Native American ancestry has grown significantly and by the 2000 census, the number had more than doubled.

Since the 1960s the Chief rabbinate of Israel has moved somewhat closer to the positions of Haredi Judaism.

Since the administrative reforms in Bavaria in the 1970s, the town also encompasses the following Ortsteile:

Since the 1970s, self-help books, psychology, and some modern expressions of Christianity have viewed this disparity in terms of grace being an innate quality within all people who must be inspired or strong enough to find it: something to achieve.

Since its introduction at games by the " Roar from 34 ", led by Wild Bill Hagy and others, in the late 1970s, it has been a tradition at Orioles games for fans to yell out the " Oh " in the line " Oh, say does that Star-Spangled Banner yet wave " in " The Star-Spangled Banner ".

Since the 1970s Bambara has mostly been written in the Latin script, using some additional phonetic characters.

Since the stagflation of the 1970s, the U. S. economy has been characterized by slower GDP growth.

Since the 1970s the microprocessor class of CPUs has almost completely overtaken all other CPU implementations.

Since the 1970s Capoeira masters began to emigrate and teach it in other countries.

Since then, Japanese research in computer music has largely been carried out for commercial purposes in popular music, though some of the more serious Japanese musicians used large computer systems such as the Fairlight in the 1970s.

Since the 1970s, the use of diesel engines in larger on-road and off-road vehicles in the USA increased.

Since the 1970s, sand-based pitches were favoured as they dramatically speed up the pace of the game.

Since the 1970s, when Elizabeth A. R. Brown published The Tyranny of a Construct ( 1974 ), many have re-examined the evidence and concluded that feudalism is an unworkable term and should be removed entirely from scholarly and educational discussion, or at least used only with severe qualification and warning.

Since originally taking interest in climate studies in the 1970s, Dyson has suggested that carbon dioxide levels in the atmosphere could be controlled by planting fast-growing trees.

Since the 1970s his music has enjoyed a modest revival which looks set to continue as it is rediscovered and re-evaluated.

Since the 1970s there has been a revolution in scholarship: the Elohist source is now widely regarded as no more than a variation on the Yahwist, while the Priestly source is increasingly seen not as a document but as a body of revisions and expansions to the Yahwist ( or " non-Priestly ") material.

Since the late 1970s, towns in the north began industrial production through maquiladoras, especially in San Pedro Sula and Puerto Cortés.

Since the 1970s, the tradition has been revived.

Since its post-WW2 economic boom in the 1970s, Finland's GDP per capita has been among the world's highest.

Since a productive period in the 1970s, the mining industry has been hampered by the Iran – Iraq War ( 1980 – 88 ), the sanctions of the 1990s, and the economic collapse of 2003.

Since the oil shocks of the 1970s, Japan has reduced dependence on petroleum as a source of energy from more than 75 % in 1973 to about 57 % at present.

Since the 1970s Penderecki's style has changed to encompass a post-Romantic idiom.

Since the early 1970s, the road infrastructure has been substantially developed.

Since Hite performed her study during the popularity of feminism in the 1970s, she also acknowledged that women may have chosen the political identity of a lesbian.

Since the early 1970s he has refused to write for conventional symphony orchestras and has instead opted to write for his own idiosyncratic instrumental combinations, which often retain some traditional orchestral instruments alongside electric guitars, electric basses, and congas.