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 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 1966 the group has seen many permutations and has included Garrett List, Jon Hassell, Alex Dea, and many others, including members of the 60s groups.

Since rock often emphasized directness and simplicity over virtuosity, jazz-rock generally grew out of the most artistically ambitious rock subgenres of the late ' 60s and early ' 70s: psychedelia, progressive rock, and the singer / songwriter movement.

Since the late ' 60s Humphries has appeared in numerous films, mostly in supporting or cameo roles.

Since 1977, Hagar has lived in Tamalpais Pavilion, a modernist house designed by English architect Paffard Keatinge-Clay in the early ' 60s.

Since its heyday as a colonial town in the 1950s and early 60s, Mbala has suffered some decline, and has lost out in development terms to the provincial capital, Kasama, and Mpika, which have better road and rail connections.

If Not, Why Have Problems Worsened Since ' 60s?

Since working for EWS / DB Schenker, Class 60s have typically been employed on stone, aggregate, ballast and petroleum traffic and also on steel trains.

Since April 1990 he has hosted Sounds of the 60s ( a programme first presented in 1983 by Keith Fordyce ) on the same network on Saturday mornings, playing many of the records he initially played on Saturday Club and Easy Beat.

Since 2003, the majority of widespread viruses and worms have been designed to take control of users ' computers for black-market exploitation.

Since the 1980s there has been a boom in the exploitation of the Amazon Rainforest for mining, logging and cattle ranching, posing a severe threat to the region's indigenous population.

Since poverty has become very prevalent in the Pygmy communities, sexual exploitation of indigenous women has become a common practice.

Since Geoffrey Bardon's time and in the early years of the Papunya movement, there has been concerns about the exploitation of the largely illiterate and non-English speaking artists.

Since the beginning of the Red Army's exploitation of Germany's Army Group South's defenses in late January and early February, the fronts involved included the Bryansk, Voronezh and Southwestern Fronts.

Since the conditions of serfdom in former Poland due to the exploitation by nobility and arendators were already severe, discussion exists on how partitions influenced the life of common people.

Since then exploitation of the river's commercial potential has opened up the area, often causing friction with local Māori, who have long-standing grievances.

Since usury is a form of economic monopoly and exploitation in a capitalistic system, the rich would become richer, while the poor become poorer.

Since then, an infrastructure has been developed in Belgium and Switzerland for the production of reusable learning content, including distributed storage and discovery, as well as its exploitation in structured courses.

Since the early 1980s, the salmon and sea trout stocks in the Taff have been recovering from nearly 200 years of industrial pollution and exploitation.

Since at least as far back as the 1930s, exploitation films had sometimes been presented at midnight screenings, usually as part of independent roadshow operations.

Since the article's subject is the film from which the screenshot is taken, no free equivalent can exist ; the image is of one single frame ( 1 / 24th of a second ) from the original work ( a feature-length film ), and is of a low resolution unsuited for commercial exploitation ; the content has been previously displayed publicly outside Wikipedia ; it meets the general and media-specific content guidelines for Wikipedia ; is used in at least one ( currently in four ) article on Wikipedia ; its presence will significantly increase readers ' understanding of the film ( the article's subject ) and its lack would impair that understanding ; it is used only in article space and its description page ( this page ) contains suitable information about the image's source, applicable copyright tag, and the names of and links to the articles in which it is used.

Since the exploitation of the salt from the lake was uncontrolled, the Plan has emphasized the need for managing the exploitation to avoid negative impact on the lake environment.