Seleucia

Seleucia (; ), also known as or or Seleucia ad Tigrim, was a major Mesopotamian city, located on the west bank of the Tigris River within the present-day Baghdad Governorate in Iraq. It was founded around 305 BC by Seleucus I Nicator as the first capital of the Seleucid Empire, and remained an important center of trade and Hellenistic culture after the imperial capital relocated to Antioch. The city continued to flourish under Parthian rule beginning in 141 BC; ancient texts claim that it reached a population of 600,000. Seleucia was destroyed in 165 AD by Roman general Avidius Cassius and gradually faded into obscurity in the subsequent centuries. The site was rediscovered in the 1920s by archaeologists.

==Names== Seleucia (, Seleúkeia) is named for Seleucus I Nicator, who enlarged an earlier settlement and made it the capital of his empire around 305 BC. It was the largest and most important of the many cities to bear its name but is sometimes distinguished as or () from the name of its river.