The Ageless Wisdom teaching was first made available to the general public around 1875 by Helena Petrovna Blavatsky in her seminal works: The Secret Doctrine and Isis Unveiled. Blavatsky established the Theosophical Society to introduce this `new' perspective on history and human evolution. The intermediate phase of the teaching was revealed by Alice A. Bailey who, from 1919 to 1949, collaborated with a Master of Wisdom known as `the Tibetan'. Through a process of telepathic overshadowing, the Master Djwhal Khul communicated a vast body of information about the world and its future.