Since World War I millions of eastern Europeans were dispersed in various areas where Orthodox communities had never existed before. The Russian Revolution provoked a massive political emigration, predominantly to western Europe and particularly France. It included eminent churchmen, theologians, and Christian intellectuals, such as Bulgakov, Berdyayev, and V.V. Zenkovsky, who were able not only to establish in Paris a theological school of great repute but also to contribute significantly to the ecumenical movement. In 1922 Patriarch Tikhon appointed Metropolitan Evlogy as head of the émigré churches, with residence in Paris. The authority of the metropolitan was challenged, however, by ...(100 of 21255 words)