State formation in East Asia developed a thousand years before it did in Europe, and it occurred for reasons of emulation, not competition. China, Japan, Vietnam, and Korea emerged as states beginning in the second century BCE, and existed for centuries thereafter with centralized bureaucratic control defined over territory and administrative capacity to tax their populations, field large militaries, and provide extensive public goods. They created these institutions not to wage war. Rather, these countries developed states through emulation of China. State formation in historical East Asia occurred under a hegemonic system in which war was relatively rare, not under a balance of power system with regular existential threats. Rather, domestic elites copied Chinese civilization for reasons of prestige and domestic legitimacy. Our research challenges the universality of the bellicentric thesis of state formation. The willingness to acknowledge the Eurocentric origins of much of IR theory is not new; what is new in this book is the empirical evidence we bring that shows this explicitly, and a positive theoretical contribution about the causes of state formation.