Since 1977, New Zealand has celebrated Arbor Day on June 5, which is also World Environment Day, prior to then Arbor Day, in New Zealand, was celebrated on August 4 – which is rather late in the year for tree planting in New Zealand hence the date change.

Since the late 1930s alloy steels have been used for frame and fork tubes in higher quality machines.

Since the late 1980s, evidence has become available that instillation of BCG into the bladder is an effective form of immunotherapy in this disease.

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 late nineteenth century, the South used a colloquial term, the one-drop rule, to classify as black a person of any known African ancestry.

Since the late nineteenth century, only two brief periods of violence have marred its democratic development.

Since there is no evidence that late Maastrichtian nonavian dinosaurs could burrow, swim or dive, they were unable to shelter themselves from the worst parts of any environmental stress that occurred at the K – T boundary.

Since the late 1990s, Orange has also been working in conjunction with singer / songwriter Craig Deanto, and they have released an album titled Who Hears the Cries.

Since 2000Actually the most important are: Cable Onda ( 40 % share ), Cable and Wireless ( started on late 2009 ) and CTV.

Since these geographic considerations imply that, not including the hill within, the walls would be willfully making the city prone to attack from it, some scholars, including the late 19th century surveyors of the Palestine Exploration Fund, consider it unlikely that a wall would ever have been built that would cut the hill off from the city in the valley ; archaeological evidence for the existence of an earlier city wall in such a location has never been found.

Since the late 1990s, custom dog tags have become fashionable amongst musicians ( particularly rappers ), and as a marketing giveaway item.

Since the late 1980s, prominent individuals and organizations have recognized the seminal importance of Engelbart's contributions.

Since the late 1990s, Dublin has experienced a significant level of net immigration, with the greatest numbers coming from the European Union, especially the United Kingdom, Poland and Lithuania.

Since the late 19th century, differential geometry has grown into a field concerned more generally with the geometric structures on differentiable manifolds.

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 the late 1980s, the field has been revived in the wake of progress made in the related fields of psycholinguistics, neurolinguistics, evolutionary anthropology, evolutionary psychology, and cognitive science.

Since the late ' 60s, the exploitation of oil increased production and reserves are estimated at 4. 036 million barrels

Since its acquisition of Verant in late 1999, SOE develops, runs, and distributes EverQuest.

Since the late 1990s, almost all release prints have used polyester film stock.

Since the late 1990s, bzip2, a file compression utility based on a block-sorting algorithm, has gained some popularity as a gzip replacement.

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

Since the late 1980s, Indonesia has made significant changes to its regulatory framework to encourage economic growth.

* interface to personal computers: Since the late 1990s, most pumps can interface with personal computers for managing and documenting pump programming and / or to upload data from the pump.

Since the late 1990s, the Jamaican government has set an agenda to push the development of technology in Jamaica.

Since the late Middle Ages the Kingdoms of England and Scotland had been evolving towards a quasi-oligarchical or collegiate form of government in which the monarch was held to rule with the consensus of the land-owning upper classes.

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

Since then groups that are not affiliated to the Santo Daime have used ayahuasca, and a number of different ' styles ' have been developed, such as the non-religious approach developed by Daniel Waterman in 2001, popularly termed Ayahuasca Open Style ( AOS ).

Since 2001 this office has been held by Klaus Wowereit of the SPD.

Since 2001, financial services in the British Virgin Islands have been regulated by the independent Financial Services Commission.

Since about 2001, territorial defence forces, which as of 2002 number around 150, 000, have been forming, organized into battalions, companies, and platoons spread across Belarus.

Since 2001, Bulgaria has managed to attract considerable amounts of Foreign Direct Investment ( FDI ).

Since then, Nike then Adidas have had more overt branding on the shirts, with sponsors Scottish Provident ( 1997 ), NTL ( 2001 ), Zurich ( 2005 ) and HSBC ( 2009 ).

Since the retirement of Cal Ripken Jr. in 2001, the Orioles began a downward spiral, compiling a losing record in every season between 1998 and 2011.

Since 2001, he has been the co-host of the Kentucky Derby.

Since the turn of the millennium, notable successes among cult and midnight movies have been Donnie Darko ( 2001 ), the 2001 comedy Wet Hot American Summer, an absurdist parody of the pre-MTV summer camp genre, and the comic book adaptation Ghost World.

Since these first accounts, Bulgarian authorities had organized several population censuses: 1892, 1900, 1905, 1910, 1920, 1926, 1934, 1946, 1956, 1965, 1975, 1985, 1992, 2001 and 2011.

) Since 2001 the population census has been combined with the housing statistics.

Since 2000, with a struggling Gateway was taken over by eMachines, this left only Dell as Compaq's major competitor, however Dell became the number one supplier of PCs in 2001.

Since the beginning of the second Intifada the DFLP has carried out a number of shooting attacks against Israeli targets, such as the 25 August 2001 attack on a military base in Gaza that killed three Israeli soldiers and wounded seven others.

Since 2001, both baronies have been redesignated the City of Dublin.

Since 2001, the two companies have shared a CEO, Ilan Yeshua, who has continued Powell's strategy of introducing new products with the Britannica name.

Since September 11, 2001, the island is guarded by patrols of the United States Park Police Marine Patrol Unit.

Since the collapse of the Taliban government in 2001, new trade relations are emerging with the United States, Pakistan, Iran, Turkmenistan, the EU, Japan, Uzbekistan, India and other countries.

Since 2001, the Royal Danish Army has been involved in the War in Afghanistan as part of the ISAF.

Since the fall of the Taleban in 2001, Denmark has supported Afghanistan with education and democratisation.

* Since 2001: Operation Enduring Freedom in Afghanistan

Since 2001, economic growth declined caused by adverse shocks such as a slowdown in the global economy and natural disasters.

Since 2001, 40 non-natural amino acids have been added into protein by creating a unique codon ( recoding ) and a corresponding transfer-RNA: aminoacyl – tRNA-synthetase pair to encode it with diverse physicochemical and biological properties in order to be used as a tool to exploring protein structure and function or to create novel or enhanced proteins.

Since August 2001, all newly purchased taxis run on LPG.