The First Dynasty, an unbroken succession of Amorite kings, lasted 300 years despite a major rebellion. Babylon had close relationships with the nearby cities Sippar, Kish, and Borsippa. Trade and alliances reached much further. The Sumerian king-lists of earlier times were replaced by Babylonian equivalents, various cities having their own version. Kings briefly recorded major events; names were given to each year of their reign for dating documents. Trade was widespread, by canal and river, or overland by donkey. Royal edicts excluded certain groups from trade. Evidence comes from a profusion of clay tablets. Official letters are plentiful. Priestesses of Marduk carried out trade for Babylon in other cities. The temple of Marduk was built and furnished with a golden throne. Elamite control over several major cities, which left its mark on temple design, was ended by Hammurabi late in his reign; there is a possible connection with Genesis 14:1–16. Regular edicts were issued to release individuals from debt and to regulate trade. The main powers were Halab (Aleppo), Eshnunna, and Larsa, until Hammurabi achieved supremacy and claimed divinity. His successor Samsu-iluna followed his father’s example.

Hard times for Babylon followed the end of the First Dynasty; but records of two Sealand kings, and the account of magnificent rebuilding of Marduk’s temple by a Kassite king imply wealth and energy. Glass production brought a new source of wealth, and horses were bred for chariots. Marduk was still the supreme god. The top status of the Kassite kings in Babylon was recognized by the pharaohs in Egypt. There cuneiform was used for international correspondence and Babylonian literature used to train local scribes. Foreign wives were taken from Elamite, Assyrian, and Hittite royalty. A top scribe from Babylon served in Assyria, and literature flourished. Boulders recording donations of land were carved with texts and celestial motifs. The office of eunuch is discussed. The Assyrian king raided Babylon, looting literary tablets among other valuables. He took over rule of Bahrain to access Gulf trade. The Kassite kings soon resumed the dynasty but the Elamite king raided and in turn took huge amounts of booty. In the next dynasty, the great Nebuchadnezzar I defeated Elam and wrote a heroic account. As a result of tribal incursions by Arameans, the Aramaic language began to spread, and camels trained for transport opened up desert trade. A library already existed in Babylon.