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 Sociological Society and the Society of Professional Sociologists,), and it is not clear what is the proper successor to the Soviet Sociological Association (disbanded in 1999). Two major centers of sociological research are the Institute of Sociology and the Institute of Sociopolitical Research, both at the Russian Academy of Sciences. The M. Kovalevskii Prize is the most prestigious modern Russian award for sociological research. There are about 30 sociology journals published in Russia, two of which are published in English: "Sociological Research" and "Society and Education". Between 1998 and 2006 more than 1,000 sociological books and monographs, including several dictionaries