Do what thou wilt shall be the whole of the law.
Love is the law, love under will.

Timeline

1902
Theodor Reuss, along with Franz Hartmann, purchased the right to perform the Rite of Memphis and Mizraim of Freemasonry
In 1902, Reuss, along with Franz Hartmann and Henry Klein, purchased the right to perform the Rite of Memphis and Mizraim of Freemasonry from English Freemason John Yarker, the authority of which was confirmed in 1904 and again in 1905. Although these rites are considered to be irregular, they, along with the Swedenborg Rite formed the core of the newly established Order.
1902
1903
Founding of the O.T.O.
The founding of Ordo Templi Orientis began with a wealthy paper chemist, Carl Kellner (1851-1905). A student of the occult and familiar with several modern secret organizations, he had come to believe that he had discovered a “Key" to the symbolism of Freemasonry and to the Mysteries of Nature itself. He then aspired to create an Academia Masonica that would unifiy the various systems of Masonry. Kellner, along with an associate, Theodor Reuss (1855-1923), decided to call it the Oriental Templar Order. In 1902, Reuss, along with Franz Hartmann and Henry Klein, purchased the right to perform the Scottish, Memphis and Mizraim rites of Freemasonry, the authority of which was confirmed in 1904 and again in 1905. These rites, along with the Swedenborgian Rite, formed the core of the newly established Order. When Kellner died in 1905, Reuss assumed full control, becoming the first Outer Head of the Order.
1903
1910
Admittance of Aleister Crowley in the O.T.O.
Reuss met Aleister Crowley and in 1910 admitted him to the three degrees of O.T.O. Only two years later Crowley was placed in charge of Great Britain and Ireland, and advanced to the X°. The appointment included the operation of the Masonic degrees of O.T.O., which were called Mysteria Mystica Maxima. Within the year Crowley had written the Manifesto of the M∴M∴M∴ which described the basic ten-degree system—which was still principally Masonic—with Kellner’s three degree Academia Masonica forming the VII°, VIII° and IX°.
1910
1913
Aleister Crowley composed the Gnostic Mass
In 1913, Crowley composed the Gnostic Mass while in Moscow, which he described as being the Order’s “central ceremony of its public and private celebration." In 1914, soon after World War I broke out, he moved to America. It was around this time that he decided to integrate Thelema into the O.T.O. system, and in 1915 had revised rituals prepared for use in his M∴M∴M∴ He revised them again in 1918, and in so doing removed the ritual’s ties to Masonry.
1913
1917
Theodor Reuss wrote a Synopsis of Degrees of O.T.O.
In 1917, Reuss wrote a Synopsis of Degrees of O.T.O. in which the third degree was listed as "Craft of Masonry" and listed the initiations involved as "Entered Apprentice, Fellow Craft, Master Mason" and elaborated on this with "Full instruction in Craft Masonry, including the Catechism of the first three degrees, and an explanation of all the various Masonic systems".
1917
1922
Aleister Crowley auto-proclaims himself as the “Outer Head “ of the O.T.O.
In 1922, Crowley proclaimed himself as Outer Head of the Order of O.T.O. based on the claim that Reuss (who might have suffered a stroke) had become incapable of running the Order. Reuss died in 1923.
1922
1933
Founding of Agapé Lodge in Los Angeles, S.U.A.
In 1933, Agapé Lodge was formed in Los Angeles, California under the leadership of Wilfred Talbot Smith (1885-1957). He and Regina Kahl celebrated the first public performance of the Gnostic Mass. Smith was advanced to the X° for the U.S. in 1935. Soon after, the Lodge moved to Pasadena where it was run by Jack Parsons (1914-1952), a founder of the JPL.
1933
1942
Grady McMurtry becomes Hymaneus Alpha
Crowley personally conferred the IX° to Grady McMurtry (1918-1985), a member of Agapé Lodge. It was then that he assumed his new Magical Name, Hymenaeus Alpha. McMurtry received several letters from Crowley in 1944 stating his desire to have McMurtry assume the role of Caliph and to be in line for succession to OHO. In 1946, McMurtry was entrusted with documents of emergency authorization to operate O.T.O. within California (the location of the only operational Lodge), along with the appointment of being Crowley’s personal representitive within the U.S., second only to Germer.
1942
1937
Death of Aleister Crowley (December 1)
Aleister Crowley died on December 1, 1947 and Karl Germer became OHO. He served from 1947 until his death in 1962. During his time as OHO, O.T.O. activity came to a standstill, with no new initiations being performed. An O.T.O. camp was chartered in England to Kenneth Grant, but he was expelled in 1955 for modifying the initiation rituals and claiming that the body was under joint leadership with another organization, Fraternitas Saturni.
1937
1962
Death of Karl Germer (October 25)
Germer died in 1962 without himself naming a successor. In 1969, Grady McMurtry invoked his emergency authorization from Crowley and assumed the title of Caliph, which Crowley had granted him. He began performing intiations in 1970. Growth was very slow for the first few years, although McMurtry did pick up on the publishing front, such as issuing Crowely’s Thoth Tarot deck. Grady McMurtry died in 1985.
1962
1963
Metzger tries to auto-proclaim himself as the “Outer Head “ of the O.T.O.
Hermann Metzger, another claimant, had been initiated into O.T.O. under Germer in Germany in the 1950s, and headed the Swiss branch of the Order. After Germer's death he attempted to proclaim himself head of O.T.O based on an unanimous vote by his Swiss O.T.O. members. However, his claims were ignored by everyone outside of his country and he never pressed the issue. He died in 1990.
1963
1977
Charter of Thelema Lodge
As Hymenaeus Alpha, himself served as national grand master and acting Outer Head of the Order, in addition to being master of the original lodge of the Order’s revival, an office which he held for exactly 93 months until his death on 12th July 1985 e.v. A document certifies this event, and which was sealed that day (October 12th An. LXXIII E.N. or 1977 E.V) with Crowley’s ring.
1977
1985
Hymaneus Beta is elected by the Sovereign Sanctuary of the Gnosis of the O.T.O.
McMurtry requested that members of the Sovereign Sanctuary of the Gnosis (i.e. the members of the Ninth Degree) elect the next Caliph, which they did in 1985. William Breeze was elected, taking the name Hymenaeus Beta. In the Fall 1995 issue of The Magical Link, he is designated "Hymenaeus Beta X°"; in the Fall 1997 issue of The Magical Link, he is designated "Hymenaeus Beta XI°"; by May 2005, he is designated "O.H.O. Hymenaeus Beta XII°" on the O.T.O. website.
1985
1996
Sabazius X° was appointed as National Grand Master General (G.M.G.) for the U.S. Grand Lodge
In 1996, Sabazius X° was appointed as National Grand Master General for the U.S. Grand Lodge. Since McMurtry’s time, O.T.O. has greatly expanded its publishing activities, initiated thousands of men and women into its ranks, and become an international organization with groups in dozens of countries around the world.
1996
2015
O.T.O. in Romania
In 2015 the O.T.O. becomes active in the Romanian space through it’s new initiated members.
2015
2019
Lux Occulta Camp
At the beginning of 2019, the first O.T.O. camp forms under the name of Lux Occulta.
2019