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 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 its independence, Armenia has maintained a policy of complementarism by trying to have friendly relations both with Iran, Russia, and the West, including the United States and Europe.

Since then, American English has been influenced by the languages of West Africa, the Native American population, Spanish, and immigration.

Since Alan Ayckbourn's plays started becoming established in the West End, interviewers have raised the question of whether his work is autobiographical.

Since its original 1973 Broadway production, the musical has enjoyed professional productions in the West End, by opera companies, in a 2009 Broadway revival, and elsewhere, and it is a popular choice for regional groups.

Since the 16th century, Portugal extensively adopted slavery to man their colonies, coming mainly from West and Central Africa.

Since the NL East winners had had home field advantage in 1983, the NL West winners were entitled to it.

Since reunification, the German government has spent vast amounts of money on reintegrating the two halves of the city and bringing services and infrastructure in the former East Berlin up to the standard established in West Berlin.

Since the reunification of 1990, Schwarzbier, which was common in East Germany, but could hardly be found in West Germany, has become increasingly popular in Germany as a whole.

Since 1992 Albania has been seeking a closer relationship with the West.

* Since its 1824 renaming in his honor, the capital city of the West African country of Liberia has been named Monrovia.

Since the institution of a democratic form of government in 2002, Mali's relations with the West in general and the United States in particular have improved significantly.

Since Independence in 1990, Namibia has seen a dramatic growth in radio stations, with both commercial ( for instance Radio 99, Radio Wave, Radio Energy, Omulunga Radio, West Coast FM, etc.

Since its creation the Nigerian military has fought in a civil war – the conflict with Biafra in 1967 – 70 – and sent peacekeeping forces abroad both with the United Nations and as the backbone of the Economic Community of West African States ( ECOWAS ) Cease-fire Monitoring Group ( ECOMOG ) in Liberia and Sierra Leone.

Since 1983 the Presbyterian Youth Triennium has been held every three years at Purdue University in West Lafayette, Indiana, U. S. and is open to Presbyterian high school students throughout the world.

* Mwakikagile, Godfrey, Military Coups in West Africa Since The Sixties ( Nova Science Publishers, Inc., 2001 ).

Since the early nineteenth century, various different approaches have emerged in the West to theology as an academic discipline.

Since either of these options would require the assistance of the French fleet then in the West Indies, a ship was dispatched to meet with French Rear Admiral François Joseph Paul, comte de Grasse who was expected at Cap-Français ( now known as Cap-Haïtien, Haiti ), outlining the possibilities and requesting his assistance.

Since 1870, the main University campus has been located on Gilmorehill in the West End of the city.

Since the 1960s the worship of Krishna has also spread in the West, largely due to the International Society for Krishna Consciousness .< ref name =" bare_url ">

Since December 1945 Rickover had been Inspector General of the 19th Fleet on the US West Coast.

Since the Northern Crusades Estonia became a battleground for centuries where Denmark, Germany, Russia, Sweden and Poland fought their many wars over controlling the important geographical position of the country as a gateway between East and West.

Since its replacement by the telegraph, the Pony Express has become part of the lore of the American West.

Since 1994, it has been broken up into three smaller provinces: the Western Cape, Eastern Cape and Northern Cape, plus parts of the province were absorbed into the North West.

Since the date of Easter is calculated differently in the East and West ( see Easter controversy ), in most years the two traditions celebrate Pentecost on different days ( though in some years the celebrations will coincide, as in 2010 and 2011 ).