Baghdad is founded.

Baghdad is the capital and largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the most populous cities in the Middle East and Arab world and forms 22% of the country's population. Spanning an area of approximately 673 square kilometres (260 sq mi), Baghdad is the capital of its governorate and serves as Iraq's political, economic, and cultural hub.