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 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 then the label has grown and diversified into releasing rock ( The Lemonheads, The Donnas, Killing Joke, The Mission ), indie ( The Charlatans, Art Brut, Idlewild ), punk ( Dropkick Murphys, Less Than Jake, The Buzzcocks, The Undertones and Blondie ), electronica ( The Prodigy, Nitin Sawhney, The Orb ) and eclectic records such as Mexican Institute Of Sound.

Since the homosexuals widely use marijuana, they do not have to be initiated.

Since the slogans have little application to reality and are sanctimonious to boot, the applause is faint even in areas of the world where we should expect to find the greatest affection for free government.

Since Rhode Island at that time did not have such sanction, his opinion was not popular.

Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.

Since 1957, more and more trans-Atlantic passengers have been crossing by air.

Since two of these could be trustees of the college, actually it would be necessary to have the consent of only one elected official to impose a levy of millions of dollars of tax revenue.

Since appeals to morality, to humanity, and to sanity have had such small effect, perhaps our last recourse is the deterrent example.

`` Since the war I have seen the way the Germans have behaved and I think, Holy Mother, we have behaved like this for hundreds of years.

Since that time the demands of the citizens for new and expanded services have placed financial burdens on the state which could not have been foreseen in earlier years.

Since faculty see themselves as self-employed professionals rather than as employees, enthusiasm in a common enterprise is proportionate to the sense of ownership they have in it by virtue of sharing in the decisions that govern its course.

Since the concept of high fidelity became important some dozen years ago, the claims of technical improvements have multiplied tenfold.

Since SAAMI's conception in 1926, and more specifically since the adoption of the Shooting Development Program in 1954, millions of dollars and promotional man-hours have gone into the development of more places to shoot for more youths and adults.

Says NRLDA's James Wright: `` Since 1958 carriers that move material from the yard to the job site have undergone more radical changes than any of the dealer's other equipment ''.

Since practical washing procedures are both lengthy and expensive, a number of laboratory tests have been developed for the numerical evaluation of detergents.

Since there is a continual loss of micrometeoritic material in space because of the radiation effects, there must be a continual replenishment: otherwise, micrometeorites would have disappeared from interplanetary space.

Since Af and P divides Af for Af, we have Af.

A final class of exceptional lines is identifiable from the following considerations: Since no two generators of Af can intersect, it follows that their image curves can have no free intersections.

Since they are all either rented or borrowed, the requested dates for their use have to be far in advance.

Since the writer had not noticed this characteristic in married students scattered throughout the various sections previous to this experiment, nor, as a matter of fact, in those who were continuing in `` single sections '', he can only conclude that there must have been something `` contagious '' within the specific group which caused this to occur.

Since the details of the elections were settled the change of government had no direct effect on the technical aspects of the elections, and may have been more important as an indication of royal displeasure with the U.N.F.P.

Since 1917 some thirteen supplementary and related acts have extended this Federal program.

Since this type of item was not in the statute when section 381 was enacted in 1954, one cannot say with certainty what effect the enactment of that section should have.