Culture & Lifestyle • Occultist

Aleister Crowley

Aleister Crowley was a British occultist, writer, and mountaineer best known for founding the religion and philosophy of Thelema and for popularizing the spelling "magick" for ritual practice.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Aleister Crowley was a British occultist, writer, and mountaineer best known for founding the religion and philosophy of Thelema and for popularizing the spelling 'magick' for ritual practice. Born Edward Alexander Crowley in 1875, he became a controversial figure in his lifetime and later a cult figure in popular culture. His influence appears in Canadian readers' interest in occult history, a topic covered by Le Journal de Montréal.

Early life and education

Crowley was born Edward Alexander Crowley on October 12, 1875, in Royal Leamington Spa, England. He later adopted the name Aleister Crowley and developed a lifelong interest in occult and esoteric ideas.

Occult career and Thelema

Crowley became a prominent occultist and is best known for founding Thelema, a religious and philosophical system centered on individual will. He co-founded the A∴A∴ in 1907 and was also associated with the Hermetic Order of the Golden Dawn and the Ordo Templi Orientis. He used the spelling 'magick' to distinguish ritual practice from stage magic.

Public reputation

During his lifetime, Crowley was widely denounced for his lifestyle and controversial beliefs. He had few followers in life but became a cult figure after his death.

Writings and influence

Crowley wrote extensively on occultism and related subjects, including works for the A∴A∴, and his work continued to attract readers after his death. He is considered a significant influence on later occult and popular culture.

Key facts

Crowley was a British occultist, writer, and mountaineer who founded Thelema.
He used the spelling 'magick' to distinguish ritual practice from stage magic.
He was associated with occult groups including the Hermetic Order of the Golden Dawn, the A∴A∴, and the Ordo Templi Orientis.
He was widely denounced in his lifetime and later became a major figure in popular culture.
He died on December 1, 1947, in Hastings, England.

🍁

Canadian context

Crowley’s influence appears in Canadian readers’ interest in occult history, esoteric literature, and popular culture, especially through later music, art, and alternative spirituality references.

Frequently asked questions

Who was Aleister Crowley?

He was a British occultist, writer, and mountaineer who founded Thelema and became one of the most controversial esoteric figures of the 20th century.

What is Thelema?

Thelema is Crowley’s religious and philosophical system, centered on the idea of discovering and following one’s true will.

What does 'magick' mean in Crowley’s work?

Crowley used 'magick' to refer to ritual and occult practice, distinguishing it from stage or illusionary magic.

What groups was Crowley associated with?

He was associated with the Hermetic Order of the Golden Dawn, co-founded the A∴A∴, and later became a leader in the Ordo Templi Orientis.

Why was Crowley controversial?

He was denounced in his own time for his beliefs and decadent lifestyle, and his public reputation was highly contentious.

When did Crowley die?

He died on December 1, 1947, in Hastings, England.

References

Encyclopaedia Britannica — https://www.britannica.com/biography/Aleister-Crowley
Supports: Birth, death, nationality, occupations, notoriety, and posthumous reputation.
Wikipedia — https://en.wikipedia.org/wiki/Aleister_Crowley
Supports: Co-founding of the A∴A∴ in 1907 and propagation of Thelema.
EBSCO — https://www.ebsco.com/research-starters/history/aleister-crowley
Supports: Overview of Crowley as British occultist, founding Thelema, and key biographical facts.