Extinct religious groups

Zurvanism was a fatalistic religious movement of Zoroastrianism in which the divinity Zurvan is a first principle (primordial creator deity) who engendered equal-but-opposite twins, Ahura Mazda and Angra Mainyu. Zurvanism is also known as "Zurvanite Zoroastrianism", and may be contrasted with Mazdaism.

Mazdaism (Armenian: Մազդէականութիւն; Persian: آیین مزدایی) It is a pre-Zoroastrian Iranian religion, believed to be the ancestor of Zoroastrianism, from which later religions would derive, unlike Zoroastrianism, Ahura Mazda is one of the gods in Mazdaism, considered to be equal to Mithra.

250px|thumb|Lake Mariout today The Therapeutae were a Jewish religious sect which existed in Alexandria and other parts of the ancient Greek world. The primary source concerning the Therapeutae is the De vita contemplativa ("The Contemplative Life"), traditionally ascribed to the Jewish philosopher Philo of Alexandria (c. 20 BCE – 50 CE). The author appears to have been personally acquainted with them. The author describes the Therapeutae as "philosophers" (cf. I.2) and mentions a group that lived on a low hill by Lake Mariout close to Alexandria in circumstances resembling lavrite life (cf. I

thumb|Cult statue of Zeus Hypsistos, from the sanctuary of Zeus Hypsistos, Imperial Roman times, Archaeological Museum, Dion.