History of serfdom process, referred to as "second serfdom" or "export-led serfdom", persisted until the mid-19th century and became very repressive and substantially limited serfs' rights. Before the 1861 abolition of serfdom in Russia, a landowner's estate was often measured by the number of "souls" he owned, a practice made famous by Gogol's 1842 novel "Dead Souls". Many of these countries abolished serfdom during the Napoleonic invasions of the early 19th century. Serfdom remained in force in most of Russia until the Emancipation reform of 1861, enacted on February 19, 1861, though in the Russian-controlled Baltic provinces it had been abolished at the
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