Overview
Ashur, Ashshur, also spelled Ašur, Aššur (Sumerian: AN.ŠAR₂, Assyrian cuneiform: , ) was the national god of the ancient Assyrians until their gradual conversion to Christianity between the 1st and 5th centuries AD.
History
Ashur was the city god of the eponymous Mesopotamian city of Assur founded circa 2600 BC, and was frequently interchanged in Old Assyrian texts. Since the city of Assur was situated upon a natural hill, Ashur may have been the deified hill, and subsequent Old Assyrian names that invoke Ashur relationship with mountains do suggest that he was originally a mountain god. Several things separate Ashur from the gods of Southern Mesopotamia and other gods of Assyria, such as the fact that he did not originally have a family or any attributes, being solely connected to his city. A bull frequently appears in Old Assyrian seals, appearing to be worshipped, suggesting that the bull was either the symbol of Ashur or was Ashur himself. The rulers of Assur were only called the "governors" (išši'akum) of Assur, reserving the title of king for the god. A similar system was also attested in Eshnunna, with the human king as the governor and Tishpak taking on titles usually ascribed to kings. As a general rule, Ashur was not originally worshiped outside of the city of Assur during the Bronze Age, except in some of the Assyrian trading colonies (karum) in Anatolia and Assyrian towns in Upper Mesopotamia.
When Shamshi-Adad I usurped the throne of Assur, he brought with him an increased level of southern influences. Shamshi-Adad renovated the temple of the god Ashur and called it Enlil's temple, equating Ashur with Enlil. This equation would become significant from the Middle Assyrian Period onwards, and Ashur would absorb Enlil's family, including his wife Ninlil (Mullissu) and his son Ninurta
During the Middle Assyrian Empire, Tukulti-Ninurta I made the unprecedented move regarding the cult of Ashur. Kar-Tukulti-Ninurta, a new royal residence north-east of Assur named after the king himself, would contain a new temple dedicated to Ashur. The city was largely abandoned after his death. Assur would remain the only cult center of the god Ashur until the fall of the Assyrian empire, and indeed until the late 3rd century CE sacking of Assur by the Sassanid Empire.
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