This lecture investigates how the American perception of the twentieth century shifted between its beginning and its end, specifically examining the changing cultural and political frameworks used to define the era. Alan Brinkley, a distinguished historian of American political and intellectual life, utilizes this inaugural lecture to contrast the optimism and anxieties of the 1890s with the retrospective assessments of the 1990s. He argues that the way a society images its own time is a critical indicator of its broader historical consciousness and national identity.

Experts recognize this lecture as a concise, high-level synthesis of Brinkley's broader work on American political culture. Readers frequently note the academic density of the prose, which is characteristic of an inaugural lecture delivered within the University of Oxford tradition.