Natural sociability and the basic features of human nature stood at the centre of Thomas Abbt's confrontation with conjectural history, the popular eighteenth-century mode of reconstructing the evolution of human culture. Abbt (1738–1766) criticised conjectural histories due to their arbitrary character, and opted for a synthetic approach consisting of both sacred and secular history. He suggested that the anthropology of Genesis should be accepted as the starting point for a conjectural history, since it left ample room for further questions and (...) speculations. Yet his own perspective on human nature and its evolution remained naturalistic, as attested by his divergent interpretations of the confusion of tongues at Babel. Attempting to shed new light on the lesser-known elements of Abbt's work, the essay links his views on the Bible and conjectural history to his debate with Moses Mendelssohn over the constitution and destination of man. In this debate, both Mendelssohn and Abbt dealt with the contemporary controversy over the natural or artificial character of sociability, self-interest, and fellow-feeling. (shrink)