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 return to The Valley, three sides of the ground have been completely redeveloped turning The Valley into a modern, all-seater stadium with a 27, 111 capacity.

Since the enlargement, in May 2004 and January 2007, the co-operation covers 35 countries, the EU of 27, including Cyprus and Malta and the 10 Mediterranean Partners.

Since 3 May 1814, the Sovereign Principality of Elba was created a miniature non-hereditary Monarchy under the exiled French Emperor Napoleon I. Napoleon I was allowed, by the treaty of Fontainebleau with ( 27 April ), to enjoy, for life, the imperial title.

Since Mountbatten had no sons, when he was created Viscount Mountbatten of Burma of Romsey in the County of Southampton on 27 August 1946 and then Earl Mountbatten of Burma and Baron Romsey in the County of Southampton on 28 October 1947, the Letters Patent were drafted such that in the event he left no sons or issue in the male line, the titles could pass to his daughters, in order of seniority of birth, and to their heirs male respectively.

Since September 27, 2007, the U. S. Department of Treasury designated 25 senior Burmese government officials as subject to an asset block under Executive Order 13310.

* Since November 1997, Slovenia has participated in its first United Nations peacekeeping operation, contributing 27 troops to an Austrian UNFICYP contingent on Cyprus.

Since its inception in 1948, the U. S. Navy nuclear program has developed 27 different plant designs, installed them in 210 nuclear powered ships, taken 500 reactor cores into operation, and accumulated over 5, 400 reactor years of operation and 128, 000, 000 miles safely steamed.

Since Carl Linnaeus published his description of leopards in the Systema Naturae in 1758, as many as 27 leopard subspecies were subsequently described by naturalists from 1794 to 1956.

Since 1969, the university has won 27 national team championships in nine different sports and has had 63 individual national champions.

On June 27, 1981, the Central Committee adopted the " Resolution on Certain Questions in the History of Our Party Since the Founding of the People's Republic of China " ( The Resolution ), an official assessment of major historical events since 1949.

Since McLain's 31 win season, only two other pitchers have approached the 30-game milestone ( Steve Carlton won 27 games in and Bob Welch also with 27 victories in.

Since 27 July 1999, France has a universal medical coverage for permanent residents in France ( stable residence for more than three months ).

Since the April 27, 2011 tornado, the Fultondale City Council, at Mayor Jim Lowery's suggestion, has passed two ordinances that the owners of Home Field think are directed at discouraging the reopening of their 21 year old business.

* Middletown Upper Houses Historic District – on Connecticut Route 99 ; Since July 27, 1979

Since Acrux is at − 63 ° declination, the southermost first-magnitude star, it is only visible south of latitude 27 ° N.

Since 1977 Büllingen consists of 27 villages:

Since 27 October 2002, all ITV plc-owned franchises, regional programming is either preceded or plugged by an oral regional announcement, in the format ITV1 regional brand, e. g. ITV1 Granada.

Since the Curia had always been organized on the basis of the Roman family, the Curiate Assembly actually retained jurisdiction over clan matters even after the fall of the Roman Republic in 27 BC.

Since the axial tilt of the Earth is considerable ( approximately 23 degrees 27 minutes ) the sun does not set at high latitudes in ( local ) summer.

Since it started in 2006 journey times have decreasing by 26 % northbound and 9 % southbound and journey time variability has decreased by 27 %.

Since 1884 the MLA has held a national, four-day convention from December 27 to December 30.

Since 2006 situation improved very rapidly and by 2011 Poland's Corruption Perceptions Index places it as only 10th most corrupt of 27 EU states, or 8th most corrupt of 12 new EU member states.

Since 27 August 1981, Stuart has presented on every news bulletin devised on BBC television apart from the BBC News at Ten.

Since only 27 were built, however, they only took over the heaviest and most-prestigious trains ; most Hudsons labored until the end of steam on the New York Central.