Abstract
We know that Prince Volodymyr as Saint of Russia was eventually canonized and proclaimed the saintly saint of God. And in regard to its connection with the Muslim religion, then the domestic authorities from the historical science - such as Karamzin, Tatishchev, Kostomarov, Solovyov, Hrushevsky, Grekov, Tolochko, and even Rybakov and even Gumilev - did not have significant differences. None of them doubted the historical truthfulness of centuries of "trodden" theory of Vladimir's choice of the Great State religion.