In 988, Christianity was officially adopted in Ancient Rus’ and began to spread, ushering in major political and cultural transformations in the state. Prince Vladimir, who would later be called Vladimir the Baptizer, was not the first ruler of Rus’ to turn his attention to Christianity. Earlier, his grandmother, Princess Olga, was baptized during a visit to Constantinople by the Byzantine Emperor Constantine VII Porphyrogenitus and Patriarch Theophylact. The Series «The Baptism of Rus’», available to watch online on ivi, will tell not only of the activities of Princess Olga and Grand Prince Vladimir Svyatoslavich, but also of the religious beliefs of their predecessors, beginning with the Varangian Rurik, who was invited to rule in Novgorod in the mid-9th century.