The Kyivan Rus –1240s

The powerful state of Rus (Kyivan Rus) grew around Kiev in the 800s and 900s. In the 11th century Kyivan Rus was geographically the largest state in Europe. Kyivan Rus prince Volodymyr converted the Kyivan nobility and most of the population to Christianity in year 988. Conflict among the feudal lords led to decline in the 12th century and many small feudal states were formed. In the beginning of the 13th century the main Rus principality was Galicia-Volhynia under prince Danylo Romanovych.