Group

Kievan Rus', or Kiev, Great Principality of

State Defunct 882 CE – 1283 CE Capital Kiev > Kijev Kyyivs'ka Oblast Ukraine

Kievan Rus' is a loose federation of East Slavic tribes in Europe from the late 9th to the mid-13th century, under the reign of the Rurik dynasty.

The modern peoples of Belarus, Ukraine, and Russia all claim Kievan Rus' as their cultural inheritance.

At its greatest extent in the mid-11th century, it stretches from the Baltic Sea in the north to the Black Sea in the south and from the headwaters of the Vistula in the west to the Taman Peninsula in the east, uniting the majority of East Slavic tribes.

Kievan Rus' begins with the rule (882–912) of Prince Oleg, who extends his control from Novgorod south along the Dnieper river valley in order to protect trade from Khazar incursions from the east[ and moves his capital to the more strategic Kiev.

Sviatoslav I (died 972) achieves the first major expansion of Kievan Rus' territorial control.

Vladimir the Great (980–1015) introduces Christianity with his own baptism and, by decree, that of all the inhabitants of Kiev and beyond.

Kievan Rus' reaches its greatest extent under Yaroslav I (1019–1054); his sons assemble and issue its first written legal code, the Rus' Justice, shortly after his death.

The state declines beginning in the late 11th century and during the 12th century, disintegrating into various rival regional powers.

It is further weakened by economic factors such as the collapse of Rus' commercial ties to Byzantium due to the decline of Constantinople and the accompanying diminution of trade routes through its territory.

The state finally falls to the Mongol invasion of the 1240s.

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Moran, J. (n.d.). Kievan Rus', or Kiev, Great Principality of. History Atlas. Retrieved 6 November 2026, from https://www.historyatlas.com/groups/kievan-rus-or-kiev-great-principality-of/

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