The Kievan Rus developed close ties with the Byzantines, leading early Russia to adopt (Blank). The first Russian empire revered the Roman and Byzantine empires and adopted the title of (Blank) for its emperors in honor of former rulers in Rome.

Choose 2 correct answers
A. Eastern Orthodoxy
B. Greek fire
C. Roman Catholicism
D. caesar
E. patriarch
F. tsar

A. Eastern Orthodoxy

F. Tsar