A solar deity which was the chief god of the city of Assur and the kingdom of Assyria. With the latter's conquests, Assur assumed leadership of the Assyrian pantheon and supremacy over the other gods of Mesopotamia. The deity was conceived in anthropomorphic terms. The image of the deity was fed and clothed and was responsible for fertility and security, and represented as a winged sun-disc. It is also the name of the ancient religious capital of the Assyrian empire in northern Mesopotamia, on the bank of the River Tigris at modern Qalaat-Shergat, which was a great trading center and the burial place of the kings even after the government moved to Nineveh. First recorded in the 3rd millennium BC as a frontier post of the empire of Akkad, it then became an independent city-state and finally the capital of Assyria. After Assyria's collapse in 614 BC it failed to survive but was briefly revived under the Parthians. Areas of the palaces, temples, walls, and town have been cleared, and a sondage pit was cut beneath the Temple of Ishtar (pre-Sargonid) to reveal the 3rd and early 2nd millennium levels (the first use of this technique in Mesopotamian excavation). Sumerian statues were found - among the earliest evidence of Sumerian contact outside the southern plain. For over 2000 years successive kings built and rebuilt the fortifications, temple, and palace complexes: inscriptions associated with these monuments have helped in the construction of the chronology of the site. Three large ziggurats dominated the city with the largest being 60 m square (completed by Shamsi Adad I c 1800 bc). It was originally dedicated to Enlil, but later to Assur; the dedication of the other temples also changed through time. Representations on cylinder seals suggest that many buildings might have had parapets and towers. Assurnasirpal II (883-859 BC) moved the capital to Calah and by 614 BC the city of Assur had fallen to the Median (Medes) army.