Mithraism, also known as the Mithraic mysteries or the Cult of Mithras, was a Roman mystery religion focused on the god Mithras. Although inspired by Iranian worship of the Zoroastrian divinity (yazata) Mithra, the Roman Mithras was linked to a new and distinctive imagery, and the degree of continuity between Persian and Greco-Roman practice remains debatable.The mysteries were popular among the Imperial Roman army from the 1st to the 4th century AD.
Worshippers of Mithras had a complex system of seven grades of initiation and communal ritual meals. Initiates called themselves syndexioi, those "united by the handshake". They met in dedicated mithraea (singular mithraeum), underground temples that survive in large numbers. The cult appears to have had its centre in Rome, and was popular throughout the western half of the empire, as far south as Roman Africa and Numidia, as far east as Roman Dacia, as far north as Roman Britain, and to a lesser extent in Roman Syria in the east.
