All articles starting with P
28,818 articles
Principality of Tao-Klarjeti
The Principality of Tao-Klarjeti was a medieval Georgian principality, also called the Kingdom of the Kartvelians, founded by Ashot I in the early 9th century.
Principality of Taron
The Principality of Taron (Տարոն) was an Armenian principality southwest of Lake Van, ruled by the Mamikonians and Bagratids until Byzantium annexed it in 966.
Principality of Terebovlia
The Principality of Terebovlia (Теребовлянське князівство) was an appanage principality of Kyivan Rus', with its capital at Terebovlia, existing from about 1084 to the mid-12th century.
Principality of Theodoro
Principality of Theodoro, also Gothia or Theodoro-Mangup, a Greek Orthodox principality in southwestern Crimea centered on Mangup, under Golden Horde protectorate, at war with Genoa 1422–1441, conquered by the Ottomans in 1475.
Principality of Tmutarakan
The Principality of Tmutarakan (Тмутараканское княжество) was an outlying principality of Kievan Rus' on the Taman Peninsula from the late 10th to the late 11th century.
Principality of Transylvania
The Principality of Transylvania (Erdélyi Fejedelemség) was a vassal state formed in eastern Hungary after the fall of Buda in 1541, formalized by the Treaty of Speyer in 1570.
Principality of Travunia
Travunia (Serbo-Croatian: Travunija) was an early medieval South Slavic principality centered on Trebinje in today's eastern Herzegovina, later falling to Bosnian king Tvrtko I in 1378.
Principality of Turov
The Principality of Turov (Туровское княжество) was a principality of Kievan Rus' in the Pripyat River basin, in modern Belarus, with its capital at Turov.
Principality of Tver
The Principality of Tver (Тверское княжество) was a Russian principality on the upper Volga, centered on Tver, and Moscow's chief rival until Moscow conquered it in 1485.
Principality of Upper Hungary
The Principality of Upper Hungary (Hungarian: Felső-Magyarországi Fejedelemség) was a short-lived Ottoman vassal state in northeastern Hungary, ruled by Imre Thököly from 1682 to 1685.
Principality of Valona
The Principality of Valona was a medieval state centered on the port of Vlorë in southern Albania, ruled by the Balsha family and conquered by the Ottomans in 1417.
Principality of Vaspurakan
The Principality of Vaspurakan (Վասպուրական) was an Armenian principality east and southeast of Lake Van, ruled by the Artsruni dynasty and a kingdom from 908 to 1021.
Principality of Vitebsk
The Principality of Vitebsk (Віцебскае княства) was a Ruthenian appanage principality centered on Vitebsk in present-day Belarus, formed in 1101 from the breakup of the Principality of Polotsk.
Principality of Volhynia
The Principality of Volhynia (Волынское княжество) was a medieval Rus' principality centered on Vladimir, which developed its own dynasty in the mid-12th century and united with Galicia around 1199.
Principality of Yaroslavl
The Principality of Yaroslavl (Ярославское княжество) was a Russian principality on the middle Volga, created in 1218 and surrendered by its last prince to Ivan III of Moscow in 1463.
Principality of Zahumlje
The Principality of Zahumlje, or Hum, was a medieval South Slavic principality on the eastern Adriatic coast. It was first mentioned in a mid-10th-century Byzantine account.
Principality of Zeta
The Principality of Zeta was a late medieval Balkan state on the southeastern Adriatic coast, in present-day Montenegro, ruled by the Balšić and Crnojević dynasties.
Principality of Zvenyhorod
The Principality of Zvenyhorod (Звенигородське князівство) was an appanage principality of Kyivan Rus' that emerged in the late 11th century near present-day Lviv, Ukraine, ruled by the Rostyslavych line before absorption into Halych.
Principate
Principate (principatus): the Augustan form of Roman imperial government, 27 BC to AD 284, in which the emperor ruled as princeps via proconsular imperium and tribunician power under republican forms, ending with Diocletian's Dominate.
Principi group
Principi group, also called the Belivuk–Miljković clan, formerly Janjičari, is a Serbian FK Partizan hooligan firm turned organized crime group led by Veljko Belivuk, allied with Montenegro's Kavač clan, dismantled by arrests in February 2021 and on trial for murders, torture and drug trafficking.
Principia Mathematica
Principia Mathematica is a three-volume work of formal logic by Alfred North Whitehead and Bertrand Russell, published by Cambridge University Press in 1910, 1912, and 1913, defending logicism.
Principle
Principle is a broad scientific statement describing a regularity in nature, which is not as universally established as a scientific law. Pascal's principle specifically describes confined fluids.
Principle 6 campaign
Principle 6 campaign: Athlete Ally and All Out advocacy using Olympic Charter Principle 6 against Russia's anti-gay laws before Sochi 2014; over 50 Olympians signed; led to host city contract clause and sexual orientation added to the Charter.
Principle of compositionality
The principle of compositionality, also called Frege's principle, is the thesis that an expression's meaning is determined by its structure and the meanings of its constituents.
Principle of double effect
The principle of double effect, from Thomas Aquinas's self-defense discussion and codified by J. P. Gury, holds that foreseen but unintended harm as a side effect of a good end may be permissible, while the same harm as a means is not.
Principle of explosion
The principle of explosion, also known as ex falso quodlibet or ex contradictione quodlibet, is the rule of inference that anything at all follows from a contradiction.
Principle of faunal succession
The principle of faunal succession is the geologic principle that fossils appear in a definite, recognizable order, so rock layers can be matched and relatively dated by their fossils.
Principle of least action
The principle of least action is a variational formulation of mechanics in which the realized path makes the action, the time integral of the Lagrangian, stationary, reproducing Newton's equations.
Principle of least astonishment
The principle of least astonishment, also called the principle of least surprise, is a software design principle stating that a system should behave as its users expect.
Principle of least privilege
The principle of least privilege is a security principle stating that users and processes get only the minimum access needed for their assigned tasks, codified as NIST control AC-6.