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 there are almost no schools in the country offering graduate work in interior design this rule cannot at present be observed.

Since 2002, when the 27-year civil war ended, the country has worked to repair and improve ravaged infrastructure and weakened political and social institutions.

Since 2001, the economic activity in the country is regulated by the Ministry of Economic Development of Azerbaijan Republic.

Since conference and of the Food and Agriculture Organization's publication World Festival of Trees, and a resolution of the United Nations in 1954: " The Conference, recognising the need of arousing mass consciousness of the aesthetic, physical and economic value of trees, recommends a World Festival of Trees to be celebrated annually in each member country on a date suited to local conditions "; it has been adopted by the Netherlands.

Since the incident on 19 September 2002 ( see History of Ivory Coast ), a civil war broke out, and the north part of the country has been seized by the rebels, the New Forces ( FN ).

Since the establishment of the Revolutionary Government of Cuba in 1959, the country has sent more than 52, 000 medical workers abroad to work in needy countries, including countries affected by the 2004 Indian Ocean earthquake and the 2005 Kashmir earthquake.

Since the July 2006 elections, the country is led by a semi-presidential, strongly-decentralized state.

Since then, the country has benefited from political stability.

Since 2004, the colón stopped circulating and is now never used in the country for any type of transaction ; however some stores still have prices in both colons and U. S. dollars.

Since the cultivation of coffee required the highest lands in the country, many of these lands were expropriated from indigenous reserves and given or sold cheaply to those that could cultivate coffee.

Since then, the country has had two presidents: Francisco Macías Nguema, the former mayor of Mongomo under the Spanish colonial government, and Teodoro Obiang Nguema Mbasogo ( Macías's nephew ), who has ruled since 1979 when he staged a military coup d ' état and executed Macías.

Since the Iraq War, evangelicalism has begun to make inroads in Iraq, capitalizing on a new openness to Western missionaries following the US-led invasion of the country, although the vast majority of converts are from other sects of Christianity present in Iraq .< ref >

Since the age of industrialisation, the country has been a driver, innovator, and beneficiary of an ever more globalised economy.

Since the age of industrialisation, the country has been a driver, innovator, and beneficiary of an ever more globalised economy.

Since 2010, the country has began hosting a street festival to encourage all generations and people from all walks of life to enjoy and encourage Malaysian street culture.

Since 2003 Rose Revolution, new Government of Georgia implemented broad and comprehensive reforms, that touched every aspect of the country ’ s life.

Since his death, Parsons has been recognized as an extremely influential artist, credited with helping to found both country rock and alt-country.

Since independence, nearly 300 small internal rebellions and civil wars have occurred in the country, including some changes of government.

Since Greece, a maritime country, could not oppose the mighty British navy, and citing the need for a respite after two wars, King Constantine favored continued neutrality, while Venizelos actively sought Greek entry in the war on the Allied side.

Since AIFMD covers the entire EU, and individual countries have different rules for hedge fund marketing, the directive introduced a " passport " for hedge funds authorized in one EU country to operate throughout the EU.

Since its unification in 1861, Italy has been considered a major European country.

Since the mid-19th century, after the Meiji restoration, the country was opened up to Western commerce and influence and Japan has gone through two periods of economic development.

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

Since the Early Modern period, the title of knight is purely honorific, usually bestowed by a monarch, as in the British honours system, often for non-military service to the country.

Since the end of the war, the Lebanese have conducted several elections, most of the militias have been weakened or disbanded, and the Lebanese Armed Forces ( LAF ) have extended central government authority over about two-thirds of the country.