Nabopolassar fought with an Assyrian-style army and took the throne of Babylon. Thirteen years later, Nineveh fell despite Egyptian help. Babylon took over much of the Assyrian empire. Later he defeated the last Assyrian king at Harran. His success was seen as Marduk’s revenge. Captured wealth from Assyrian royal cities allowed major building work at Babylon, which was continued by Nabopolassar’s son Nebuchadnezzar II. Neither king left statues of themselves, and cylinder seals represent gods by their symbols. Major subsidence in the citadel required frequent rebuilding on the Southern Palace. The names of temples and gates were compiled on to a clay tablet as a literary work. Colour-glazed bricks adorned the Processional Way leading to the temple of the New Year festival outside the citadel walls. That festival is described. Some of his creations Nebuchadnezzar described as a Wonder, but he made no mention of the Hanging Garden. In a separate part of the citadel, Nebuchadnezzar built a Summer Palace. His conquests included Tyre and Ashkelon but not Egypt or Lydia. He sacked the Temple in Jerusalem and deported its royal family to Babylon. Other captives settled on land nearby. Business archives of long duration continue into the Achaemenid period.

The content and significance of Hammurabi’s law code stela, including material and artistic aspects as well as text, are described and related to earlier law codes from other cities and biblical parallels. Protection of property, trade, family, warfare, and personal injury are among the topics. The separate content of its prologue and epilogue are discussed. The system of scribal education that lay behind its composition, from primary school to tertiary, was based on a formal curriculum beginning with sign lists and word lists. Model contracts and model letters, and extracts from myths and epics are found alongside satire and humour. The importance of divination and oracles for military success is emphasized. Precursors to themes later found in the Epic of Creation, such as gods waging war against Chaos can already be found in contemporary literature. The rise of Marduk can be traced in relation to Hammurabi’s conquests. The downside of warfare is explored in the Poem of Agushaya. The Epic of Creation is of central importance for Marduk and Babylon as world leaders, superseding earlier claimants. Epics from southern Mesopotamia are earlier and do not feature Marduk or Babylon.

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.