IslamIslam (ˈɪslɑːm; ۘالِإسْلَام, al-ʾIslām ʔɪsˈlæːm, ) is an Abrahamic monotheistic religion centered on the Quran and the teachings of Muhammad. Adherents of Islam, called Muslims, number approximately 2 billion globally and are the world's second-largest religious population after Christians. Muslims believe that Islam is the complete and universal version of a primordial faith that was revealed many times through earlier prophets such as Adam (believed to be the first man), Ibrahim, Moses, and Isa (Jesus), among others.
MithraismMithraism, also known as the Mithraic mysteries or the Cult of Mithras, was a Roman mystery religion centered on the god Mithras. Although inspired by Iranian worship of the Zoroastrian divinity (yazata) Mithra, the Roman Mithras is linked to a new and distinctive imagery, with the level of continuity between Persian and Greco-Roman practice debated. The mysteries were popular among the Imperial Roman army from about the 1st to the 4th century CE. Worshippers of Mithras had a complex system of seven grades of initiation and communal ritual meals.
ZurvanismZurvanism is 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. In Zurvanism, Zurvan was perceived as the god of infinite time and space and was aka ("one", "alone"). Zurvan was portrayed as a transcendental and neutral god, without passion, and one for whom there was no distinction between good and evil.
Achaemenid EmpireThe Achaemenid Empire or Achaemenian Empire (əˈkiːmənᵻd; 𐎧𐏁𐏂, Xšāça, ) was the ancient Iranian empire founded by Cyrus the Great of the Achaemenid dynasty in 550 BC, also known as the First Persian Empire. Based in Western Asia, it was the largest empire the world had ever seen at its time, spanning a total of from the Balkans and Egypt in the west to Central Asia and the Indus Valley in the east. Around the 7th century BC, the region of Persis in the southwestern portion of the Iranian plateau was settled by the Persians.
YarsanismYarsanism, Ahl-e Haqq or Kaka'i (یارسان or ئەهلی حەق; اهل حق, كاكائي), is an inherited, syncretic religion founded by Sultan Sahak in the late 14th century in western Iran. The total number of followers of Yarsanism is estimated to be over half a million to one million in Iran. The numbers in Iraq are unknown. Followers are mostly Kurds from the Guran, Sanjâbi, Kalhor, Zangana and Jalalvand tribes. Turkic-speaking Yarsan enclaves also exist in Iran. Some Yarsanis in Iraq are called Kaka'i.
Sasanian EmpireThe Sasanian Empire (səˈsɑːniən,_səˈseɪniən), officially known as Eranshahr ("Land/Empire of the Iranians"), was the last Iranian empire before the early Muslim conquests of the 7th–8th centuries AD. Named after the House of Sasan, it endured for over four centuries, from 224 to 651 AD, making it the longest-lived Persian imperial dynasty. The Sasanian Empire succeeded the Parthian Empire, and re-established the Persians as a major power in late antiquity alongside its neighbouring arch-rival, the Roman Empire (after 395 the Byzantine Empire).
