Since 1721, the official titles of the Russian male and female monarchs were Emperor (, imperator ) and Empress (, imperatritsa ), respectively, or Empress Consort.

Since Maurice had also given her more serious grounds of complaint against him, he consented to an annulment of the marriage in 21 March 1721.

Since 1721, brewing rights have been held by the Kohlschein family.

Since the commission for Hopetoun in 1721, he had leased quarries near Queensferry which provided the stone for his building contracts.

Since 1721, all Lord Lieutenants have also been Custos Rotulorum of the East Riding of Yorkshire.

Since then, and since the pure grain had gotten him divorced from every decent -- and even indecent -- group from Greenwich Village to the Embarcadero, he had become a sucker-rolling freight-jumper.

Since a ruled surface of order N with N concurrent generators is necessarily a cone, it follows finally that every line through a point, P, of **zg meets its image at P, as asserted.

`` Since we're having coffee with them this afternoon '', he said, `` I think I'll ask the daughter if we can pay her to come in every day to clean for us ''.

Since independence from Portugal in 1975, a number of Angolan students continued to be admitted every year at high schools, polytechnical institutes, and universities in Portugal, Brazil and Cuba through bilateral agreements ; in general, these students belong to the Angolan elites.

Since John Wesley ordained and sent forth every Methodist preacher in his day, who preached and baptized and ordained, and since every Methodist preacher who has ever been ordained as a Methodist was ordained in this direct " succession " from Wesley, then the Methodist Church teaches that it has all the direct merits coming from apostolic succession, if any such there be.

Since 1998, Harvard University wraps some of the valuable statues on its campus, such as this " Harvard Bixi | Chinese stele ", with waterproof covers every winter, in order to protect them from erosion caused by acid rain.

Since 1998, Harvard University wraps some of the bronze and marble statues on its campus, such as this " Harvard Bixi | Chinese stele ", with waterproof covers every winter, in order to protect them from erosion caused by acid rain ( or, actually, acid snow )

Since these two constructions are inverses of each other, we can say that every Boolean ring arises from a Boolean algebra, and vice versa.

Since 2005, Lee has written the Boston Herald's poker column every Sunday.

Since the retirement of Cal Ripken Jr. in 2001, the Orioles began a downward spiral, compiling a losing record in every season between 1998 and 2011.

Since virtually every calculation in quantum mechanics involves vectors and linear operators, it can involve, and often does involve, bra-ket notation.

Let A be a unital commutative Banach algebra over C. Since A is then a commutative ring with unit, every non-invertible element of A belongs to some maximal ideal of A.

Since every day brought the arrival of the Spartans closer, the delay worked in favor of the Athenians.

Since after independence from Portugal in 1975, a number of Cape Verdean students continued to be admitted every year at Portuguese high schools, polytechnical institutes and universities, through bilateral agreements between the Portuguese Government and the Cape Verdean Government.

Since every element of

Since this curl is not the same at every point, its plot is a bit more interesting:

Since that time, the rate of crater production on Earth has been considerably lower, but it is appreciable nonetheless ; Earth experiences from one to three impacts large enough to produce a 20 km diameter crater about once every million years on average.

Since every compact Hausdorff space is a Tychonoff space, and every subspace of a Tychonoff space is Tychonoff, we conclude that any space possessing a Hausdorff compactification must be a Tychonoff space.

Since 2004, a partial census has been carried out every year, and the results published as averages over 5 years.

Since 1969 census has been taken every ten years.

Since 1900, a census has been conducted every ten years.

Since a characteristic subgroup is invariant under all automorphisms, every characteristic subgroup is normal.

The Oral Torah is the primary guide for Jews to abide by these terms, as expressed in tractate Gittin 60b, " the Holy One, Blessed be He, did not make His covenant with Israel except by virtue of the Oral Law " to help them learn how to live a holy life, and to bring holiness, peace and love into the world and into every part of life, so that life may be elevated to a high level of kedushah, originally through study and practice of the Torah, and since the destruction of the Second Temple, through prayer as expressed in tractate Sotah 49a " Since the destruction of the Temple, every day is more cursed than the preceding one ; and the existence of the world is assured only by the kedusha ... and the words spoken after the study of Torah.

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 she could not act, one part suited her as well as any other, and so she was the first person to offer Mr. Lincoln a glass of water, holding it up to the box, high above her head, to Miss Harris, who had asked for it.

Since the adoption of a new constitution, early in 2010, the politics of Angola takes place in a framework of a presidential republic, whereby the President of Angola is both head of state and head of government, and of a multi-party system.

Since Arafat's death, he is formally head of Fatah's political bureau and chairman, but his actual political following within Fatah appears limited.

Since the 2008 Guinean coup d ' état, the head of state has been Captain Moussa Dadis Camara, an army officer and President of the National Council for Democracy and Development.

Since the passage of the Instrument of Government of 1974, Swedish kings no longer have many of the usual parliamentary system head of state functions that had previously belonged to them.

Since real political power belongs to the sole legal party, in certain states under Marxist constitutions of the constitutionally socialist state type inspired by the former Union of Soviet Socialist Republics ( USSR ) and its constitutive Soviet republics, there was no formal office of head of state, but rather the leader of the legislative branch was considered to be the closest common equivalent of a head of state as a natural person.

Since the main sensory organs are anatomically located on the head, long hair provides the necessary warmth and protection in a cold climate that allows the use of these organs by exposing them to the elements to " sense ", in for example a hunt, yet still providing necessary warmth and protection to sustain prolonged exposure.

Since coming into the league the team has made the playoffs every season except one, and has only ever had one head coach, Barry Trotz.

Since medieval times monarchs of England and the United Kingdom had ministers in whom they placed special trust and who were regarded as the head of the government.

Since the Soviets claimed to have first detected the new element they suggested the name kurchatovium, Ku, in honor of Igor Kurchatov ( 1903 – 1960 ), former head of Soviet nuclear research.

Since there was a bounty on Themistocles's head, this acquaintance devised a plan to safely convey Themistocles to the Persian king in the type of covered wagon that the King's concubines travelled in.

Since then the Universal House of Justice has acted as the head of the religion ; in 1972 it published its constitution.

Since 1993, the Redskins have had 8 different head coaches, including a 4 year stint with former coach Gibbs from 2004 – 2007.

Since the independence, the West-Pakistan was a parliamentary republic ( even as of today, the parliamentary system is the official form of government of Pakistan ) with Prime minister as the head of the government and President as head of state, although Presidential office is ceremonial office.

Since 1960, when the big pumps at the head of the California Aqueduct in the Delta began their operation, the outflow of fresh water into the Pacific has been reduced to a trickle leaving the fish confused as to where to go, resulting in many generations dying off because they have not been able to find their way upstream.

Since the Pope was the spiritual head, and after 1348, the temporal ruler of Avignon, he was able to have a great deal of influence in all university affairs.

Since 1966, it has been a constitutional monarchy and parliamentary democracy, modelled on the British Westminster system, with Elizabeth II, Queen of Barbados, as head of state.

Since the accident he has always worn a cap to cover the scars on his head.

Since it is always positioned on the macula, there is no way to make it move laterally, but it can be made to rotate, by viewing a white surface through a rotating polarizer, or by slowly tilting one's head to one side.

Since good tracking depends on the exact distance between the rotating drum and the fixed control / audio head reading the linear tracks, which usually varies by a couple of micrometers between machines due to manufacturing tolerances, most VCRs offer tracking adjustment, either manual or automatic, to correct such mismatches.