![Helena Petrovna Blavatsky (1831-1891)](https://cdn.shopify.com/s/files/1/0545/8601/5937/files/HP_Blavatsky_1-min.jpg?v=1634421394)
She was the principal founder of the Theosophical Society in New York City in 1875, and devoted her extraordinary literary talents to its humanitarian and educational purposes until her death in London, England, on May 8, 1891. Along with writing her several books, H. P. Blavatsky kept up a voluminous correspondence and also contributed a steady stream of essays and articles to periodicals in English, French, and Russian.