Founders of The Theosophical Society
In 1875, Helena Petrovna Blavatsky founded the Theosophical Society in New York. She acted on assignment of her Teachers, denoted by the name of 'Masters of Wisdom and Compassion'. With the knowledge they supplied, a foundation was laid for twentieth century thinking. H.P. Blavatsky passed away in 1891 after many years of self-sacrifice. She left humanity a voluminous number of writings, of which the theosophical standard work The Secret Doctrine is the most well known.