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 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 November 2008, a regular ferry service has linked the two main islands, carrying cars, passengers and cargo.

Since the end of the whaling and sealing era, most of the islands ' species have been able to increase their population again.

Since then, new archaeological discoveries point to Mahayana and Vajrayana Buddhist influences, which are likely to have come to the islands straight from the Subcontinent.

Since the islands are located in the center of the East China Sea relatively close to Japan, China and South-East Asia, the Ryūkyū Kingdom became a prosperous trading nation.

Since the defeat and expulsion of the ruling Kuomintang ROC government by the Communist Party of China from mainland China in 1949, the ROC government has controlled only Taiwan and its surrounding islands.

Since then the Indonesian government has endorsed a policy of immigration by people from Java and other islands.

Since Vaceti is another name for the Vascones, this reference is evidence of Basque ( Gascon ) settlement or control of the islands by that date.

Since 1925, Canada has claimed the portion of the Arctic between 60 ° W and 141 ° W longitude, extending all the way north to the North Pole: all islands in the Canadian Arctic Archipelago and Herschel, off the Yukon coast, form part of the region, are Canadian territory and the territorial waters claimed by Canada surround these islands.

Since tourism facilities have been added, the islands now receive more than 50, 000 tourists each year.

Since all of Richmond's land occupies islands in a river delta, the city has plenty of rich, alluvial soil for agriculture, and was one of the first areas in British Columbia to be farmed by Europeans in the 19th century.

Since the 1960s there has been essentially no additional harvest and the pinniped populations in the Kuril islands appear to be fairly healthy and in some cases expanding.

Since the islands of Oceania were never connected by land to a continent, the flora and fauna of the islands originally reached them from across the ocean ( though at the height of the last ice age sea levels were much lower than today and many current Seamounts were islands, so some now isolated islands were once less isolated ).

Since 2001, afforestation has continued on a small scale in newly accreted lands and islands of the Sundarbans.

Since the 1950s the influence of American culture has increased, mainly through TV and radio broadcasts from Florida stations, and other Caribbean styles have made inroads: calypso, reggae and soca, from Jamaica, Cuba, Trinidad, and other islands.

Since the islands reverted to Japanese government control in 1972, the mayor of Ishigaki has been given civic authority over the territory.

( Since 1999, North Korea has claimed a more southerly Maritime Military Demarcation Line, which would make the islands a part of North Korea as well.

Since inception in the early 1990s, the group has carried out bombings, assassinations, kidnappings, and extortion in their fight for an independent Islamic state in western Mindanao and the Sulu Archipelago, with a claimed overarching goal of creating a Pan-Islamic superstate across the Malay portions of Southeast Asia, spanning, from east to west, the large island of Mindanao, the Sulu Archipelago ( Basilan and Jolo islands ), the large island of Borneo ( Malaysia and Indonesia ), the South China Sea, and the Malay Peninsula ( Peninsular Malaysia, Thailand and Burma ).

Since 1 January 2011 it is divided into 13 regional units, formed around major islands:

Since 1 January 2011 it is divided into 5 regional units, formed around major islands: Chios, Ikaria, Lemnos, Lesbos and Samos.

Since on 5 November 1815 the United States of the Ionian Islands became a federal republic of seven islands ( Corfu, Cephalonia, Zante, Santa Maura, Ithaca, Cerigo and Paxos ), as a protectorate ( nominally of the allied Powers ; de facto UK protectorate ; the highest office was the always-British Lord High Commissioner ), until its 1 June 1864 incorporation into independent Greece, there were British Residents, each posted with a local Prefect, on seven individual islands, notably: Cephalonia ( Kephalonia ), Cerigo ( Kythira ), Ithaca, Paxos, Santa Maura ( Leucada / Lefkada ) and Zante ( Zakynthos )