InterregnumAn interregnum (plural interregna or interregnums) is a period of discontinuity or "gap" in a government, organization, or social order. Archetypally, it was the period of time between the reign of one monarch and the next (coming from Latin inter-, "between" and rēgnum, "reign" [from rex, rēgis, "king"]), and the concepts of interregnum and regency therefore overlap. Historically, longer and heavier interregna have been typically accompanied by widespread unrest, civil and succession wars between warlords, and power vacuums filled by foreign invasions or the emergence of a new power.
Succession of the Roman EmpireThe continuation, succession, and revival of the Roman Empire is a running theme of the history of Europe and the Mediterranean Basin. It reflects the lasting memories of power and prestige associated with the Roman Empire. Several polities have claimed immediate continuity with the Roman Empire, using its name or a variation thereof as their own exclusive or non-exclusive self-description. As centuries went by and more political ruptures occurred, the idea of institutional continuity became increasingly debatable.
East SlavsThe East Slavs are the most populous subgroup of the Slavs. They speak the East Slavic languages, and formed the majority of the population of the medieval state Kievan Rus', which they claim as their cultural ancestor. Today, the East Slavs consist of Belarusians, Russians, Rusyns, and Ukrainians. Rus' people and Ruthenians Researchers know relatively little about the Eastern Slavs prior to approximately 859 AD when the first events recorded in the Primary Chronicle occurred.
Absolute monarchyAbsolute monarchy is a form of monarchy in which the monarch rules in his or her own right or power. In an absolute monarchy, the king or queen is by no means limited and has absolute power. These are often hereditary monarchies. On the other hand, in constitutional monarchies, in which the authority of the head of state is also bound or restricted by the constitution, a legislature, or unwritten customs, the king or queen is not the only one to decide, and his or her entourage also exercises power, mainly the prime minister.
Khan (title)Khan (kɑːn) is a historic Mongolic and Turkic title originating among nomadic tribes in the Central and Eastern Eurasian Steppe to refer to a chief or ruler. It first appears among the Rouran and then the Göktürks as a variant of khagan (sovereign, emperor) and implied a subordinate ruler. In the Seljuk Empire, it was the highest noble title, ranking above malik (king) and emir (prince). In the Mongol Empire it signified the ruler of a horde (ulus), while the ruler of all the Mongols was the khagan or great khan.
EmperorThe word emperor (from imperator, via empereor) can mean the male absolute ruler of an empire. Empress, the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules in her own right and name (empress regnant). Emperors are generally recognized to be of the highest monarchic honor and rank, surpassing kings.
