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Events on Friday 8 May 1891 1
1831 – 1891Helena Blavatsky (1831-1891)Died 8 May 1891, aged 59Russian-born occultist who co-founded the Theosophical Society in 1875. She authored Isis Unveiled and The Secret Doctrine, blending Eastern religious ideas with Western esotericism. Her writings shaped much of modern alternative spirituality.