List of sovereign states in the 15th century BC

The development of states—large-scale, populous, politically centralized, and socially stratified polities/societies governed by powerful rulers—marks one of the major milestones in the evolution of human societies. Archaeologists often distinguish between primary (or pristine) states and secondary states. Primary states evolved independently through largely internal developmental processes rather than through the influence of any other pre-existing state.

The earliest known primary states appeared in Mesopotamia c. 3700 BC, in Egypt c. 3300 BC, in the Indus Valley c. 2500 BC, India c. 1700 BC, and in China c. 1600 BC. As they interacted with their less developed neighbors through trade, warfare, migration, and more generalized ideological influences, the primary states directly or indirectly fostered the emergence of secondary states in surrounding areas, for example, the Hittites in Anatolia, the Minoan and Mycenaean states of the Aegean, or the Nubian kingdoms in the Sudan.

Professor Gil Stein at the University of Chicago Oriental Institute states:

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