Seleucia-on-the-Tigris, also known as Seleucia was an ancient Mesopotamian city. The city's ruins were situated in southeastern part of the wilderness that surrounded Baghdad in the 9th century.
History[]
At the end of the 4th century BCE, Seleucia was founded by Seleucos I, one of the successors to Alexander the Great. Its position at the Tigris and near the Euphrates allowed the city to control movement of armies for nearly the next five centuries. While it became a commercial hub and royal residence, its influence suffered around 129 BCE when it was conquered by Parthian Arsacids. Although its development progressed, the constant attacks by the Roman Empire's armies and a disadvantageous shift in the Tigris riverbeds led to the decline and then disappearance of the city around the beginning of the 3rd century.[1] Half a millennium later in the 860s, the Alamut Hidden One Basim Ibn Ishaq recovered the book Kitab al-Azif while inspecting the ruins and brought it to the famed author Al-Jahiz at the House of Wisdom for his collection.[2]