Manichaeism;

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Man·i·chae·ism
ˌmanəˈkēizəm/
noun
  1. a dualistic religious system with Christian, Gnostic, and pagan elements, founded in Persia in the 3rd century by Manes ( c. 216– c. 276). The system was based on a supposed primeval conflict between light and darkness. It spread widely in the Roman Empire and in Asia, and survived in eastern Turkestan (Xinjiang) until the 13th century.