Kievan Rus was a federation of Slavic tribes established in AD 862 ... Similarly, in 959, she sent an embassy to the Holy Roman Empire, requesting the appointment of priests and a bishop for the Rus ...

One hundred twenty years after his death, when most of Kievan Rus’ was under the yoke of the Mongol Empire, a vision led to the disinterment of Alexander Nevsky’s body, which became a relic ...