Ukrainians in Russia include all the family of hetman Ivan Mazepa, A. Vojnarovsky, and those in Mazepa's Cossack forces that returned to Russia. Some were imprisoned in exile for the rest of their lives such as hetmanPavlo Polubotok, Pavlo Holovaty, P. Hloba and Petro Kalnyshevsky. Beginning in the 19th century, there was a continuous migration from Belarus, Ukraine and Northern Russia to settle the distant areas of the Russian Empire. The promise of free fertile land was an important factor for many peasants who until 1861, lived under Serfdom. In the colonization of the new lands, a significant contribution was made by ethnic
Sociology in Russia and encyclopedias of sociology, were published in Russia. Sociology in Russia Sociology in Russia has developed since the beginning of the 20th century, despite an official ban on sociology in the Soviet Union from 1929 to 1956 and the dominance until recently of Marxist sociology. Despite sharp divisions since the breakup of the Soviet Union, the field of sociology in Russia now includes over 300 university departments, approximately 30 academic journals and several professional associations. The first sociological thinkers in the Russian Empire were significantly influenced by utopian thought. The first Department of Sociology in Russia was opened in 1907,