Since 1990, Bulgaria has an unstable party system, in the past two decades differently dominated by the post-communist Bulgarian Socialist Party or by the right Union of Democratic Forces and recently by the new right-oriented party-Citizens for European Development of Bulgaria.

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 the Bulgarians were not satisfied with the positions of the Pope after prolonged negotiations, they reached favorable agreement with the Byzantines and the decision was taken that the Bulgarian Church should become Eastern Orthodox.

Since December 2006, various sources, including the Bulgarian National Television, national newspapers, research agencies, the mayor's office, and local police, claim that Varna has a population by present address of over 500, 000, making it the nation's second-largest city.

Since the late 10th century, the names " Bulgarians " and " Bulgarian " got prevalence and became permanent designations for the local population, both in the literature and in the spoken language.

Since names in Bulgarian are gender-based, Bulgarian women have the-ova surname suffix ( Cyrillic :-овa ), for example, Maria Ivanova.

Since the late 1990s, Bulgarian authorities have switched to a new system avoiding the use of diacritics and optimized for compatibility with English.

Since the year 2000, Bulgarian archaeologist Georgi Kitov has made discoveries in Central Bulgaria which were summarized as " The Valley of the Thracian Kings ".

Since 1997, Bulgaria has been in a system of currency board and all Bulgarian currency in circulation has been backed 100 % by the foreign exchange reserves of the Bulgarian National Bank ( BNB ).

Since 2001 ( and also from 1991 – 1994 ) the DPS ( Movement for Rights and Freedoms ) party, composed almost entirely of Bulgarian Turks, has held the balance of power in Bulgarian politics.

Since the Greek headquarters did not know where the Bulgarian attack would take place, the Bulgarian Army would have temporary local superiority in the area chosen for the attack.

Since the Middle Ages it has been known as Δράμα in Greek and Драма in Bulgarian.

Since 1991 it has been entirely subordinate to the Holy Synod of the Bulgarian Orthodox Church.

Since 2005, he has also been vice president of the Bulgarian Football Union.

Since 1939 he was teaching at VGIK ( he was granted the title of professor in 1952 ) where he taught Bulgarian animator Todor Dinov among others, through 1987.

Since Bulgarian troops began hostilities in the countryside against our Army, I have the honour to request you to leave the city of Thessalonica one hour after the delivery of this letter.

Since its establishment, the football section of the sports club has won the championship once and has been a runner-up for the Bulgarian Cup competition twice.

Since the group's inception, Huun Huur Tu has collaborated with musicians from many genres, such as Frank Zappa, Johnny " Guitar " Watson, the Kodo drummers, The Moscow Art Trio, the Kronos Quartet, Hazmat Modine, The Chieftains and Bulgarian woman's singing group, Angelite.

Since 2001 it is part of the Coalition for Bulgaria, an alliance led by the Bulgarian Socialist Party.

Since 1972, the city's name is Dimitrovgrad, after the Bulgarian communist Georgi Dimitrov.

Since the Supreme Court's decision of that year this is more doubtful ; ;

( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.

Since it is not far from Viareggio, he will visit Puccini's house, as he never fails to do, to pay his respects to the memory of the composer of La Boheme, which he considers one of Puccini's masterpieces.

Since attack serves to stimulate interest in broadcasts, I added to my opening statement a sentence in which I claimed that German youth seemed to lack the enthusiasm which is a necessary ingredient of anger, and might be classified as uninterested and bored rather than angry.

Since the air is a continuum, the network of communication remains intact regardless of the positions or motions of the points ( the people ) in the net.

Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.

Since the difficulty of drawing the net is great, we will merely discuss it.

Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.

Since civilizational change is the most difficult to perceive and analyze, it seldom is given adequate attention.

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 more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.

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 Laos is of no more purely military value to Moscow itself than it is to Washington, this approach might be expected to head off Mr. Khrushchev for the moment.

Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.

Since the work is done by hand, the only limitation, it is said, `` is that of human conception ''.

Since the apparatus is new, it requires experimentation and changes in technique.

Since the obvious is not always true, the Republican National Committee wisely analyzed its defeat of last autumn and finds that it occurred, as suspected, in the larger cities.

Since he has just shown who is top dog, he may not be ready to receive this highest honor in the gift of the Soviet people.

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

Since the goal of our international planners is a World Government, this Atlantic Community would mark a giant step in that direction for, once American economic autonomy is absorbed, a larger grouping is a question of time.

Since he couldn't sleep anyway, he might as well stand their watches for them or write their reports.

Since the runner would now have been at second anyway, the passed ball no longer has any impact on the earned / unearned calculation.

Since these engines typical need extra weight for traction purposes anyway the battery pack's weight is a negligible penalty.

* Since and are typically pronounced as dental stops anyway, words like there and dare can become homophones.

Since a building that contains Prussian blue staining would exhibit much higher levels of detectable cyanides than one without anyway, Green writes that Leuchter's and Rudolf's measurements reveal nothing more than what is already visible to the naked eye.

Since Duke Leto was to be killed anyway, Yueh giving Leto the ability to strike back at his foe-even at the cost of his master's death-was acceptable ( and also fulfilled Yueh's own desire for revenge ).

Since these characters could be sent to the modem using the same two data pins that the port would need anyway, they could be sure that such a system would work on every computer.

Since Swisher had already been retired, Texeira should have been called out anyway as it was a clear case of offensive interference.

Since World War II, interest rates have largely been set with a view to the needs of the domestic economy and, anyway, changing the interest rate alone has only a limited effect.

Since the 1976 summer season, then called Rete 2 began airing at first some new show in colour, then a semi-regular colour broadcasting during the fall season ( anyway few hours a week ).

Since it was going to be too costly to re-ship everything to the right destination, the station was built in Dalaman anyway, with even a few miles of purposeless railway track.