Original sentence: One of those attracted to Spare's work was Aleister Crowley (1875–1947), an occultist who had founded the religion of Thelema in 1904, taking as its basis Crowley's The Book of the Law
Edited sentence: One of those attracted to Spare's work was Aleister Crowley (1875–1947), an occultist who had founded the religion of Thelema in 1904, taking as its basis a new holy text known as The Book of the Law