Question

The Kievan Rus developed close ties with the Byzantines, leading early Russia to adopt . The first Russian empire revered the Roman and Byzantine empires, and adopted the title of

Answer 1

The Kievan Rus developed close ties with the Byzantines, leading early Russia to adopt **Eastern Orthodox Christianity** as its state religion, which had lasting cultural and religious significance. The first Russian empire revered the Roman and Byzantine empires and adopted the title of **"Tsar"** (derived from "Caesar"), which signified their aspiration to continue the legacy of these great empires.