 Kingship is regarded as a characteristic of a state and urban society.The Nabataean institution of kingship came about as a result of multiple factors, such as the indispensabilities of trade organization and war; the subsequent outcomes of the Greek expeditions on the Nabataeans played a role in the political centralization of the Nabatu tribe.The earliest evidence of Nabataean kingship comes from a Nabataean inscription in the Hauran region, probably Bosra, which mentions a Nabataean king whose name was lost, dated by Stracky to the early third century BC.