Origins
The early history of O.T.O. is difficult to trace reliably. It originated in Germany or Austria between 1895 and 1906. Its apparent founder was Carl Kellner (1851–1905) … See more

The governing bodies of O.T.O. include:
1. International Headquarters
2. Sovereign Sanctuary of the Gnosis of the IX°
3. Secret Areopagus of the Illuminati of the VIII° See more

• Esotericism in Germany and Austria
• Members of Ordo Templi Orientis See more

O.T.O. was described by Crowley as the "first of the great Old Æon orders to accept The Book of the Law". O.T.O. originally borrowed ritual … See more

Membership in O.T.O. is based upon a system of initiation ceremonies (or degrees) that use ritual drama to establish fraternal bonds … See more

Several competing factions have claimed to be legitimate heirs to Aleister Crowley. Both before and after McMurtry revived O.T.O. in California, … See more

• Beta, Hymenaeus, ed. (1990). The Equinox: Vol. III, No. 10. York Beach: Samuel Weiser. ISBN 978-0-87728-719-3.
• Evans, Dave (2007). Aleister Crowley and the 20th Century Synthesis of Magick (2nd rev. ed.). Hidden Press. ISBN 978-0-9555237-2-4 See more