The Theosophical Society was founded in New York City on November 17, 1875, by Helena Petrovna Blavatsky, Colonel Henry Steel Olcott, and William Quan Judge. This organization was established with the primary objectives of: 1. Forming a nucleus of the universal brotherhood of humanity without distinction of race, creed, sex, caste, or color. 2. Encouraging the comparative study of religion, philosophy, and science. 3. Investigating the unexplained laws of nature and the powers latent in humans. ### Key Founders: - **Helena Petrovna Blavatsky (1831-1891):** A Russian occultist, philosopher, and author who is often regarded as the primary founder of the Theosophical Society. She is best known for her works "Isis Unveiled" and "The Secret Doctrine," which laid the foundation for theosophical thought. - **Henry Steel Olcott (1832-1907):** An American military officer, lawyer, and journalist who co-founded the society and served as its first president. Olcott was instrumental in organizing and promoting the society's activities and spreading its teachings. - **William Quan Judge (1851-1896):** An Irish-American lawyer and mystic who played a crucial role in the early development of the society. He worked closely with Blavatsky and Olcott and was a key figure in the spread of theosophy in America. ### Development and Spread: The society quickly expanded internationally, establishing branches in India, Europe, and other parts of the world. Its teachings, which blend elements of Eastern and Western spiritual traditions, emphasize the unity of all life and the importance of spiritual development. For more detailed information, you can refer to the official website of the Theosophical Society or comprehensive historical accounts available in the public domain, such as [Theosophy World](https://www.theosophy.world) and other reputable sources.