Archaeological discoveries have shown that Ur was a major Sumerian urban center on the Mesopotamian plain. The discovery of Ur's Royal Tombs further confirmed this.
Ur, important city of ancient southern Mesopotamia (Sumer) near the Euphrates River. It became the capital of Sumerian kings of the 1st dynasty of Ur. Some of the most important preserved monuments, including the ziggurat, belong to the 3rd dynasty.
The structure was built during the Early Bronze Age (21st century BC) by King Ur-Nammu of the Third Dynasty of Ur. It had crumbled to ruins by the 6th century BC of the Neo-Babylonian period, when it was restored by King Nabonidus.
The First Dynasty of Ur (abbreviated Ur I) was a dynasty of rulers from the city of Ur in ancient Sumer who reigned c. 2600 – c. 2340 BC. Ur I is part of the Early Dynastic III period of ancient Mesopotamia. [1]