SummaryFrom the early 1880s the Cambridge-trained classicist William Ridgeway had applied cutting-edge anthropological theory to his reading of ancient Greek literature in order to develop an evolutionary account of the continuous development of early Greek social institutions. Then, at the turn of the century, he began to argue that archaeological evidence demonstrated that the Achaean warriors described by Homer were in origin Germanic tribesmen from north of the Alps who had but recently conquered Mycenaean Greece. The present paper inquires as (...) to how Ridgeway reconciled these seemingly opposed visions of early Greek society. A fairly comprehensive survey of his writings leads to the suggestion that, in Ridgeway's opinion, Achaean invasion had left little lasting impact upon most early Greek social institutions, but that it had been responsible for a fundamental shift from matriarchy to patriarchy, and that this shift was the key to the subsequent greatness of Greek—and so ultimately Western—civilisation. (shrink)