In this photo released by Russian Orthodox Church Press Service, Orthodox priests and people attend a ceremony marking the 1,036th anniversary of the adoption of Christianity by Prince Vladimir, the leader of Kievan Rus, a loose federation of Slavic tribes that preceded the Russian state, in the Kremlin with the Assumption Cathedral in the background, in Moscow, Russia, Sunday, July 28, 2024. (Igor Palkin/Russian Orthodox Church Press Service via AP)