First period of Kievan Rus (879-972)
Prince Oleg
879-912
Prince Igor
912-945
Princess Olga
945-964
Prince Svyatoslav
964-972
93 years
Rus
grew as both a trading empire and a military power, with Oleh’s armies attacking Constantinople and gaining a favorable trade treaty from the Greek rulers of that city in 911 Igor (912–945) was less successful in his military campaigns against Constantinople and also had to contend with rebellions among the Slavic tribes who did not want to pay tribute to the rulers in Kiev.