No one who is interested in the growth of human ideas or the origins of human society can afford to neglect Maine's Ancient Law. Published some fifty-six years ago it immediately took rank as a classic, and its epoch-making influence may not unfitly be compared to that exercised by Darwin's Origin of Species. The revolution effected by the latter in the study of biology was hardly more remarkable than that effected by Maine's brilliant treatise in the study of early institutions. Well does one of Maine's latest and most learned commentators say of his work that "he did nothing less than create the natural history of law."