Jan Stachniuk fought against the Nazi occupation during the Warsaw Uprising. Following the end of the war and the incorporation of Poland under the Stalinist regime, both Stachniuk and Kołodziej were arrested, preventing the establishment of a Slavic Native Faith community. In 1954, a student group known as Klan Ausran was established at the University of Łódź; officially dedicated to a study of Indo-European society, its members provided hymns and prayers. A key influence on the movement was the circulation of the Book of Veles among Russian and Ukrainian emigrees. This text was brought to the public by the Russian Yury Petrovich Mirolyubov (1892–1970), who claimed that it had been discovered by a friend of his, Fodor Arturovich Isenbek, while serving as a White Army officer during the Russian Civil War. Mirolyubov alleged that the Isenbek text had been etched on wooden boards, but that these had been lost during the Second World War, leaving only his own copies. It is probable that the Book of Veles was a literary composition produced by Mirolyubov himself. In following decades the work would have caused a sensation, with many emigrees regarding it as a genuine tenth-century text. Another supporter of the book was the Ukrainian entomologist Sergey Paramonov (also known as Sergey Lesnoy; 1898–1968); he was the one who in 1957 coined the name Book of Veles for the Isenbek text and also named velesovitsa the writing system in which it was allegedly written. 1960s–1980s: Soviet Union and Slavic diaspora in the West One of the disciples of Volodymyr Shaian was Lev Sylenko (1921–2008). He subsequently left Europe and moved first to Canada and then the United States. It was in Chicago that he established the earliest groups of the Native Ukrainian National Faith (Sylenkoism) in 1966. Sylenko presented himself as a prophet of Dazhbog who had been sent to the Ukrainian people. In his view, the Ukrainians were the superior manifestation of the European peoples, and Kiev the oldest city of the white race. Sylenko was a charismatic leader, and his followers praised his talents and oratorial skills. In 1979 he published the Maha Vira ("Great Faith"), a book which he claimed chronicled the ancient history of the Ukrainian people. Sylenkoism was influenced by deism and Theosophy. A Sylenkoite centre, the Temple of Mother Ukraine, was established in Spring Glen, New York. Native Ukrainian National Faith congregations were established among Ukrainian