Russian Authentism
Russian Authentism (Russian: Аутентизм), incorporated as the Thesaurus Non-Confessional Spiritual Union (Внеконфессиональный Духовный Союз "Тезаурус"), is a Rodnover (Slavic Neopagan) philosophy and psychological practice originally founded in 1984 by Sergey Petrovich Semyonov (b. 1952) in Saint Petersburg.