Democracy without state : egalitarianism, justice, and leadership in an Oromo polity -- The making of Oromo kinship identity and structure : an anthropological analysis -- The concept of empire : what makes Ethiopia an empire? -- The Arsi Oromo resistance against Ethiopian imperial conquest (1880-1900) -- The introduction, expansion, and impact of Islam among the Arsi Oromo -- Dar Ager : the making of a periphery and the features of Ethiopian feudal colonialism in Arsiland (1886-1935) -- The nature of political administration and the structure of domination in Arsiland (1941-1974) -- The socio-economic condition of the peasantry in Arsiland (1941-1974) -- The politics of transforming the empire-state : ethnic identity vs. national identity in Ethiopia.