pre-Christian beliefs of Slavic societies. Active religious practitioners who were devoted to establishing the Slavic Native Faith appeared in Poland and Ukraine during the 1930s and 1940s, while the Soviet Union under the leadership of Joseph Stalin promoted research into the ancient Slavic religion. Following the Second World War and the establishment of communist states throughout the Eastern Bloc, new variants of Rodnovery were established by Slavic emigrants who lived in Western countries, later, especially after the collapse of the Soviet Union, they were introduced into Central and Eastern European countries. In recent times, the movement has been increasingly studied by academic scholars. Overview Scholars of religion regard Slavic Native Faith as a modern Pagan religion. They also characterise it as a new religious movement. The movement has no overarching structure, or accepted religious authority, and contains much diversity in terms of belief and practice. The sociologist of religion Kaarina Aitamurto has suggested that Rodnovery is sufficiently heterogeneous that it could be regarded not as a singular religion but as "an umbrella term that gathers together various forms of religiosity". The historian Marlène Laruelle has described Rodnovery as "more inclusive than just adherence to a pantheon of pre-Christian gods". The scholar of religion Alexey Gaidukov has described "Slavic Neopaganism" as a term pertaining to "all quasi-religious, political, ideological and philosophical systems which are based on the reconstruction and construction of pre-Christian Slavic traditions". The scholar of religion Adrian Ivakhiv has defined Rodnovery as a movement which "harkens back to the pre-Christian beliefs and practices of ancient Slavic peoples", while according to the historian and ethnologist Victor A. Schnirelmann, Rodnovers present themselves as "followers of some genuine pre-Christian Slavic, Russian or Slavic-Aryan Paganism". Some involved in the movement avoid calling their belief system either "paganism" or "religion". Many Rodnovers refer to their belief system as an "ethnic religion", and Rodnover groups were involved in establishing the European Congress of Ethnic Religions. The usage of this term suggests that the religion is restricted to a particular ethnic group. Some practitioners regard "ethnic religion" as a term synonymous with "Native Faith", but others perceive a distinction between the two terms. Laruelle has emphasised that Rodnovery "cannot necessarily be defined as a religion in the strict sense"; some adherents prefer to define it as a "spirituality" (dukhovnost), "wisdom" (mudrost), or a "philosophy" or "worldview" (mirovozzrenie). According to Schnirelmann, it was the Soviet Union's official