Because Ambrosius and Vortigern are shown in the Historia Brittonum as being in conflict, some historians have suspected that this preserves a historical core of the existence of two parties in opposition to one another, one headed by Ambrosius and the other by Vortigern.

Because of the strength of the Communist Party of China and the importance of the Marxist interpretation of history in legitimizing its rule, it was for many years difficult for historians within the PRC to actively argue in favor of non-Marxist and anti-Marxist interpretations of history.

Because of the immediacy of the information, historians tend to value live chronicles, such as annals, over dead ones.

Because of the extremely brutal forms that the Republican repression took in many places, certain historians such as Reynald Secher have called the event a " genocide ".

In 1989 an academic cohort named the Lesbian History Group wrote: Because of society's reluctance to admit that lesbians exist, a high degree of certainty is expected before historians or biographers are allowed to use the label.

Because no documentary material existed of the storming of the palace, Eistenstein's re-creation of the event has become the source material for historians and filmmakers, giving it further legitimacy as the accepted historical record, which illustrates its success as a propaganda film.

Because there are no accounts of the custom in Great Britain prior to the 17th century, some historians and folklorists have theorised that it was not an ancient British custom but was in fact imported into Britain from continental Europe in the early modern period, possibly from Flanders in Belgium, where the tradition thrived in this period.

Because of this, after AD 610 the East Roman Empire is customarily referred to as the Byzantine Empire ( the term Byzantine is a modern term invented by historians in the 18th century ; the people of the Empire itself always referred to themselves as " Ρωμιούς " – in English, Romious ).

Because the position of " 3 Cassiopeiae " does not precisely match that of Cassiopeia A, and because the expansion wave associated with the explosion has been worked backward to the year 1667 and not 1680, some historians feel that all Flamsteed may have done was incorrectly note the position of a star already known.

Because of this shift, historians divide the Zhou era into the Western Zhou (), lasting up until 771 BC, and the Eastern Zhou () from 770 up to 256 BC.

Because there is an economic incentive to seize property and rework statues anyway, historians and archaeologists have had difficulty determining when official damnatio memoriae actually took place, although it seems to have been quite rare.

Because it is the only source for the history of twelfth-century Jerusalem written by a native, historians have often assumed that William's statements could be taken at face value.

Because no guild records were kept prior to 1494 in Leuven there is no concrete proof that Matsys attained his master's status there ; however, historians generally accept this to be the location of his early training because there he had not been previously registered in Antwerp as an apprentice.

Because Huntington was the President of the Continental Congress when the Articles of Confederation were ratified, some amateur historians and civic groups in Connecticut have claimed that Huntington was actually the first President of the United States.

Because of the disproportionate number of deaths between whites and blacks, and documented accounts that at least 50 black prisoners were executed while under control of the white militia, 20th-century historians redefined the " riot " as a " massacre.

Because the use of symbolic gates is widespread in Asia — such structures can be found for example in India, China, Thailand, Korea, and within Nicobarese and Shompen villages — historians believe they may be an imported tradition.

Because the records from this period are incomplete, historians cannot be certain to what extent Nosaka's efforts in America were successful.

Because the Southern Court, the loser, is nonetheless considered the legitimate one, its time reckoning is the one used by historians.

Because De Administrando Imperio is one of the rare primary sources describing the medieval history of the Balkans, its text has been extensively analyzed by historians, sometimes concentrating on just a few sentences.

Because of their limited public role, women are named less frequently than men by Roman historians.

Because of his disgrace, and the misfortunes of his sons, there was a tendency among medieval historians of the Maghreb to attribute his deeds ( the conquest of Tangiers and the Sous ) to Uqba ibn Nafi.

Because of this, many investigators, historians, and victims believe the true arsonist — if it had indeed been arson — was never found.

Because of this, some historians suggest the term North-South States Period ( 남북국 시대, 南北國時代 ) to better reflect the fact that Silla did not unify the entire region.

Because Bright's speeches were so much a part of him, there are long and numerous quotations, which, far from making the biography diffuse, help to give us the feel of the man.

Because God is what He is, the laws of the universe, material and spiritual, are what they are.

Because, honey, I thought silently, there are plenty of desert islands in every marriage -- long periods when you're hopelessly stranded, together.

Because administration of the forest highway system is a responsibility of the Secretary of Commerce with maintenance provided by the States and counties, this Development Program for the National Forests does not include estimates of the funds needed to maintain the forest highway system nor to construct the additions to it that are needed.

Because they are `` minority '' exercises and have but a limited appeal they soon find themselves in the limbo of the forgotten.

Because of this, it would appear inevitable that an increasing percentage of strategic missiles will seek self-protection in mobility -- at least until missile defenses are perfected which have an exceedingly high kill probability.

( Note: Because of light leakage from one ultraviolet source to another, the lights are switched by a commutator-like assembly rotated by a synchronous motor.

Because of their location, on the edge of the feed lot, fence-line bunks are not in the way of mechanical manure removal.

Because agricultural activities are seasonal and the areas of production and harvest of many foods are widely scattered geographically, and because of the high cost of transporting bulk food items any substantial distance to a central processing location, the use of large central processing stations, where low-cost radiation facilities approaching the megawatt range might be utilized, is inherently impracticable.

Because electrical forces ( the charge-excess ) are far more powerful than gravitation, the surface hydrogen atoms would shoot away from the sphere.

Because the levels themselves are random variables, some assumptions and the method of contrasting the treatments ( a multi-variable generalization of simple differences ) differ from the fixed-effects model.

Because constitutional claims are of great magnitude, appellate courts might be more lenient to review the claim even if it was not preserved.

Because of the ocean's great capacity to store and release heat, maritime climates are more moderate and have less extreme seasonal variations than inland climates.

Because of its simplicity, star hopping is a very common method for finding objects that are close to naked-eye stars.

Because CCD imagers are linear, image processing may be used to subtract away the effects of light pollution, which has increased the popularity of astrophotography in urban areas.

Because all clades are represented in the southern hemisphere but many not in the northern hemisphere, it is natural to conjecture that there is a common southern origin to them.

Because of their biological significance, amino acids are important in nutrition and are commonly used in nutritional supplements, fertilizers, and food technology.

Because of their relatively large mass, + 2 electric charge and relatively low velocity, alpha particles are very likely to interact with other atoms and lose their energy, so their forward motion is effectively stopped within a few centimeters of air.

Because of the tortuous terrain in places, villages and towns in the mountains — to which travel via motorized vehicles are of little use — are still located in the high Andes of Argentina, Bolivia, Peru, and Ecuador.

Because of its elevation and distance from the coast, the Australian Capital Territory experiences four distinct seasons, unlike many other Australian cities whose climates are moderated by the sea.