Helena Petrovna Blavatsky (1831-1891) was a Russian occultist, spirit medium, and author who co-founded the Theosophical Society in 1875. She gained an international following as the leading theoretician of Theosophy, the esoteric religion that the society promoted.
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Documentary on Madame Helena Blavatsky,
founder of the Theosophical Society and scholar of ancient wisdom and literature.