Parthian EmpireThe Parthian Empire (ˈpɑrθiən), also known as the Arsacid Empire (ˈɑrsəsɪd), was a major Iranian political and cultural power in ancient Iran from 247 BC to 224 AD. Its latter name comes from its founder, Arsaces I, who led the Parni tribe in conquering the region of Parthia in Iran's northeast, then a satrapy (province) under Andragoras, who was rebelling against the Seleucid Empire. Mithridates I (171-132 BC) greatly expanded the empire by seizing Media and Mesopotamia from the Seleucids.
AvestaThe Avesta (ə'vɛstə) is the primary collection of religious texts of Zoroastrianism, composed in the Avestan language. The Avesta texts fall into several different categories, arranged either by dialect, or by usage. The principal text in the liturgical group is the Yasna, which takes its name from the Yasna ceremony, Zoroastrianism's primary act of worship, and at which the Yasna text is recited. The most important portion of the Yasna texts are the five Gathas, consisting of seventeen hymns attributed to Zoroaster himself.
ShamashShamash (Akkadian: šamaš) was the ancient Mesopotamian sun god, earlier known as Utu (Sumerian: dUTU "Sun"). He was believed to see everything that happened in the world every day, and was therefore responsible for justice and protection of travelers. As a divine judge, he could be associated with the underworld. Additionally, he could serve as the god of divination, typically alongside the weather god Adad. While he was universally regarded as one of the primary gods, he was particularly venerated in Sippar and Larsa.
Behistun InscriptionThe Behistun Inscription (also spelled Bisotun, Bisitun or Bisutun; بیستون, Old Persian: Bagastana, meaning "the place of god") is a multilingual Achaemenid royal inscription and large rock relief, produced during the reign of Darius I the Great (522-486). It is carved on a cliff at Mount Behistun in the Kermanshah Province of modern Iran. The inscription was important to the decipherment of cuneiform, because it is the longest known cuneiform text recorded in multiple languages, being written in Old Persian, Elamite, and Babylonian (a variety of Akkadian).
ZoroastrianismZoroastrianism is an Iranian religion and one of the world's oldest organized faiths, based on the teachings of the Iranian-speaking prophet Zoroaster. It has a dualistic cosmology of good and evil within the framework of a monotheistic ontology and an eschatology which predicts the ultimate conquest of evil by good. Zoroastrianism exalts an uncreated and benevolent deity of wisdom known as Ahura Mazda (Lord of Wisdom) as its supreme being.