By the late 1840s, there were five German colonies in the North Caucasus. The migration waves (especially to the Don Host Oblast) grew beginning in the second half of the 19th century with the capitalist influence on farming in Russia. Germans would immigrate not only from the regions adjacent to the Volga River but also from the Black Sea region and Germany. The majority of these Germans adhered to various branches of Protestantism, most commonly Lutheranism, Mennonitism and Baptism. Roman Catholics formed a minority and lived in six colonies.