The political and military story of waves of migrations, battles, and the rise and fall of empires can mask striking continuities across the Neolithic and Bronze Ages. The social patterns set in early agricultural societies — with most of the population farming the land, and a small number of elite who lived off their labor — lasted for millennia. Disrupted peoples and newcomers shared practical concepts of agriculture and metallurgy with one another, and wheeled vehicles allowed merchants to transact business over long distances. Merchants, migrants, and conquerors carried their gods and goddesses with them, and religious beliefs and practices blended and changed. Cuneiform tablets, wall inscriptions, and paintings testify to commercial exchanges and cultural accommodation, adoption, and adaptation.

The treaty of Ramesses II and Hattusili III brought peace between the Egyptians and the Hittites for a time, which was further enhanced by Ramesses II’s marriage to a Hittite princess. This stability was not to last, however. Within several decades of the treaty, new peoples were moving into the eastern Mediterranean, disrupting trade and in some cases looting and destroying cities. There is evidence of drought, and some scholars have suggested a major volcanic explosion in Iceland cooled the climate for several years, leading to a series of poor harvests. Both the Egyptian and Hittite Empires shrank dramatically. All of these developments are part of a general “Bronze Age Collapse” that historians see as a major turning point.