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 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 focus of his book was calculation, Bede gave instructions for computing the date of Easter and the related time of the Easter Full Moon, for calculating the motion of the Sun and Moon through the zodiac, and for many other calculations related to the calendar.

Since April 2007, The Beano has had five revamps to help it keep up to date.

Since 1582, when the Catholic Church adopted the Gregorian calendar while the Eastern Orthodox and most Oriental Orthodox Churches retained the Julian calendar, the date on which Easter is celebrated has again differed.

Since the ecclesiastical new moon falls on a date from 8 March to 5 April inclusive, the paschal full moon ( the 14th of that lunar month ) must fall on a date from 21 March to 18 April inclusive.

Since there are two different calendars currently in use among various Orthodox churches, two dates are listed: the first date is the date on the traditional Julian Calendar, the second date, after the slash, is the same day on the modern Gregorian Calendar:

Since then the university has observed this date in its calendar as Convocation Day.

Since gravitational effects are all around us, it is impossible to pin down the exact date when humans first discovered gravitational mass.

Since that date, several fortified ships have made the journey.

Since a paper describing the algorithm had been published in August 1977, prior to the December 1977 filing date of the patent application, regulations in much of the rest of the world precluded patents elsewhere and only the US patent was granted.

Since this date, the Undertones have performed several tours across the UK, Ireland, Continental Europe and North America.

Since the first term of the original federal officials began on this date and ended 2, 4, or 6 years later, this became the date on which new federal officials took office in subsequent years.

Since these events recur at different intervals, this particular sequence should be unique: the doctors found only one occurrence of this sequence while searching between 1250 and 1115 BC, the 135-year spread around the putative date for the fall of Troy.

Since the date of Easter is calculated differently in the East and West ( see Easter controversy ), in most years the two traditions celebrate Pentecost on different days ( though in some years the celebrations will coincide, as in 2010 and 2011 ).

Since he was a younger son, little attention was paid to him during his youth and his date of birth is therefore unknown.

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 he didn't become consul, he most likely died before that date.

Since the date of his birth had never been recorded, he celebrated this day as his " Roman birthday " for the rest of his life.

Since that date there has been no further suggestion of banning the Australian flag from Big Day Out events.

Since the compilation of the Book of Joshua is regarded by textual scholars as late, probably being due to the deuteronomist, it is possible that the tribal allocations given within it date from after this annexation rather than before.

Since the release of EDIF 4 0 0, the entire EDIF standards organisation has essentially dissolved.

Since then several companies have been successful selling mass-produced ( by boat industry standards ) boats.

Since making this decision correctly will lead to the most long-run profit for a skilled player, players often put considerable study into what the appropriate starting hand " standards " are for the game being played.

Since then, with improved environmental standards, light-coloured peppered moths have again become common, and the dramatic change in the peppered moth's population has remained a subject of much interest and study.

Since then many options have been added and standards agreed upon.

Since the end of the browsers wars there have been new browsers coming onto the scence, many of these are open source meaning that they tend to have faster development and are more supportive of new standards.

Since the 2000s, the latter has significantly improved as main roadways have been upgraded to near European standards.

Since the 1970s, however, courts have held plaintiffs to higher standards, giving antitrust defendants an opportunity to resolve cases in their favor before significant discovery.

Since 1959, midshipmen have been able to " cross-commission ," or request a commission in the Air Force or Army, provided they meet that service's eligibility standards.

Denver was the first major city in the United States to reach compliance with all six of these standards after previously violating five of them Since then the EPA introduced a new standard for small particulates and made the existing ozone standard stricter.

Since then VESA has issued a number of standards, mostly relating to the function of video peripherals in personal computers.

Since Chinese Americans were already nearly half the student population, the consent decree had the effect of requiring competitive Lowell high school to apply much higher academic admission standards for Chinese American students than other students.

Since it is a rather recent development in historiography, many historians dismiss counterfactual history as sometimes entertaining, but not meeting the standards of mainstream historical research due to its speculative nature.

Since 1983, Reform Judaism in the United States of America officially adopted a bilineal policy: one is a Jew if either of one's parents is Jewish, provided that either ( a ) one is raised as a Jew, by Reform standards, or ( b ) one engages in an appropriate act of public identification, formalizing a practice that had been common in Reform synagogues for at least a generation.

Since then twenty new accounting standards were issued by the Ministry of Finance of the Russian Federation aiming to align accounting practices with IFRS.

Since 2004 all commercial banks have been obliged to prepare financial statements in accordance with both Russian accounting standards and IFRS.

Since the mid-1990s, coaching has developed into a more independent discipline and professional associations such as the Association for Coaching, The International Coach Federation, and the European Coaching and Mentoring Council have helped develop a set of training standards.

Since Paul created the entire show himself, including audio and video, he maintained the original recordings and was in the process of restoring them to current quality standards until his death.

Since it is the physical layer specification only, many data communication standards and applications use it but then add a data link layer as defined in the OSI model on top of it.

Since three separate images were being sent in sequence, if they used existing monochrome radio signaling standards they would have an effective refresh rate of only 20 fields, or 10 frames, a second, well into the region where flicker would become visible.

Since " Why Don't We Get Drunk " has been knocked off the standards list, there are only nine songs played at almost every show in recent years.

Since minivans and SUVs are classified as light trucks under US CAFE standards, manufacturers had a strong incentive to market those vehicles over station wagons, which are classified as cars.

Since the prosecution at her trial did not meet their burden of proof, by today ’ s standards, it is impossible to know for sure whether she was guilty.

Since larger numbers of phones can be served by smaller numbers of cell-sites, CDMA-based standards have a significant economic advantage over TDMA-based standards, or the oldest cellular standards that used frequency-division multiplexing.