According to Ivakhiv, despite the intense efforts of Christian authorities, the Christianisation of the Slavs, and especially of Russians, was very slow and resulted in a "thorough synthesis of Pagan and Christian elements", reflected for instance in the refashioning of gods as Christian saints (Perun as Saint Elias, Veles as Saint Blasius and Yarilo as Saint George) and in the overlapping of Christian festivals on Pagan ones. The scholar of Russian folk religion Linda J. Ivanits has reported ethnographic studies documenting that even in late nineteenth- and early twentieth-century Russia there were entire villages maintaining indigenous religious beliefs, whether in pure form or under the cover of a superficial Christianity. According to her, the case of Russia is exceptional compared to western Europe, because Russia neither lived the intellectual upheavals of the Renaissance, nor the Reformation, nor the other movements which severely weakened folk spirituality in Europe.