Beginning around four thousand years ago in the lands of western Asia and the eastern Mediterranean, one of the first international ages in human history emerged. Intense exchange fostered a burst of creativity in Mesopotamia, Egypt, Anatolia, the Levant, and the Aegean in the second millennium B.C.—the time of the Middle and Late Bronze Ages. The quest for raw materials such as metals, semiprecious stones, and other exotic luxury goods led to contacts with the Iranian plateau and Central Asia. Within this lively sphere of interaction, societies that otherwise differed strongly in culture and language were linked by the exchange of objects and ideas. In response, new international styles and imagery arose, reflected in the art, trade and diplomacy that connected the Mesopotamian heartland with the regions "Beyond Babylon."