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 development of more complex conceptions of gender and subjectivity and third-wave feminism, feminist literary criticism has taken a variety of new routes, namely in the tradition of the Frankfurt School's critical theory.

Since the 1960s the Frankfurt School has been guided by Jürgen Habermas ' ( born 1929 ) work on communicative reason, linguistic intersubjectivity and what Habermas calls " the philosophical discourse of modernity ".

Since the late 1960s, Nele has lived and worked in Frankfurt.

Since the early 1990s she has been teaching at the Universities of Frankfurt and Giessen.

Since 1700, the Drawa has been used for drifting honey from Drawsko to Frankfurt.

Since the end of Cold War Hannover International has become Germany's major airport for services to countries of the former USSR next to Frankfurt International.

Since then the exchange profits from the presence of the European Central Bank in Frankfurt am Main.

Since then he has drawn Rome, Hong Kong, Frankfurt, Madrid, Dubai, Jerusalem and London on giant canvasses.

Since 1985 he has been the editor of the prestigious book series Die Andere Bibliothek, published in Frankfurt, and now containing almost 250 titles.

Since mid-June 2000 the shares of Palfinger AG have also been traded on the OTC market of the Stuttgart, Berlin, Düsseldorf and Frankfurt stock exchanges.

Since 2007, the high speed train connecting Paris and Frankfurt has stopped in Forbach, allowing the French capital to be reached in 1 hour 45 minutes and the Main metropolis in 2 hours.

Since several ISPs connect through the blocked Level 3 connection in Frankfurt, many other countries outside of Germany were also affected by this block, including the Netherlands, France, Poland, Italy and Switzerland.

Since 1991 the show is split in two: Even-numbered years show commercial vehicles in Hanover and odd-numbered years passenger vehicles ( including some motorcycles ) in Frankfurt.

Since 1990, the city of Frankfurt am Main, Kirchner's birthplace, has yearly awarded the Johanna Kirchner Medal to those who fight against oppression, and stand up against terror, torture, and murder.

Since then Rodgau has lain in the broadcast areas of the Großer Feldberg and Frankfurt Transmitters.

Since their return to the top-flight in 2005, Eintracht Frankfurt have managed to keep top-flight football at the stadium.

Since the building of the C-route of the Frankfurt U-Bahn the Westend still only had Messe line 16, which travels through the western edge and over the Alleenring.

Since 2009, the content has been maintained and distributed by Elsevier Information Systems in Frankfurt under the product name " Reaxys ".

Since 2008, Orrick has expanded through merging with 50-lawyer Düsseldorf-based law firm Hölters & Elsing ( Partnerschaft von Rechtsanwälten ), which gave the firm offices in Berlin, Düsseldorf and Frankfurt am Main, in one of Europe's largest economies, in which Orrick had lacked a presence.

Since September 19, 1806 his territories included the former Reichsstadt and on February 16, 1810 Dalberg was promoted to the strictly secular rank of Grand Duke of Frankfurt, in chief of another former Reichsstadt ( on the lower Main, enclaved in the electorate of Kurmainz, now in Hessen.

Since the 1990s, he has lived mostly in Frankfurt am Main, Germany, performing frequently at the Tigerpalast, Germany's leading varieté theater.