Blavatsky
Helena Petrovna Blavatsky (1831–1891) was a Russian occultist and author who co-founded the Theosophical Society, a movement that promoted esoteric philosophy and the idea of universal brotherhood. She traveled widely and claimed to have studied with spiritual teachers and adepts in various cultures, presenting these experiences as evidence of a hidden tradition underlying world religions.
In 1875, Blavatsky, together with Henry Steel Olcott and others, founded the Theosophical Society in New York.
Blavatsky authored several influential works. Isis Unveiled (1877) explored science, religion, and mysticism, while The Secret
Her methods and claims attracted substantial controversy. Critics accused her of deception and fraud, while supporters
She died in London in 1891, leaving a lasting but debated legacy in occult and religious thought.