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In this timely discussion Mark Peterson charts the history of the American constitution from its origins in an agrarian past to the crisis we face today, drawing on his recently published book, The Making and Breaking of the American Constitution: A Thousand-Year History (March 2026).
The American Revolution occurred at a time when Britain’s constitutional order failed to adapt to the extraordinary growth of its colonies. The framers designed an American constitution to succeed where Britain’s had faltered, planning for continuous population and territorial expansion that would eventually cross the continent. Yet by the end of the nineteenth century, it was already ill-suited for an increasingly urban, industrialized society, and the transformations of the twentieth century have pushed it to a breaking point.
A specialist in early North America and the Atlantic world, Peterson traces the American constitutional tradition to the control of land in medieval England, showing how the founders incorporated the aspirations of Magna Carta with the administrative principles of the Domesday Book, a meticulous survey and valuation of landed property commissioned by William the Conqueror. This framework encouraged the growth of democratic self-government in a young nation. It also institutionalized the colonization of territory and the expulsion of Indigenous peoples, establishing a legal blueprint for transforming tribal lands into revenue-yielding real estate for settlers. With a riveting narrative, Peterson paints an arresting picture of a dynamic republic whose government has changed enormously to meet the challenges of the modern age, but whose written constitution has changed very little.
Mark Peterson is the Edmund S. Morgan Professor of History at Yale University, and the Faculty Director of Yale's Lewis Walpole Library. He is the author of The Making and Breaking of the American Constitution: A Thousand-Year History with Mark Peterson (March 2026), The City-State of Boston: The Rise and Fall of an Atlantic Power, 1630-1865 (2019), and The Price of Redemption: The Spiritual Economy of Puritan New England (1997). Peterson was a Stephen Botein Fellow in 1999-00 and an American Council of Learned Societies Frederick Burkhardt Fellow in 2002-3. He was elected to AAS membership in April 2004 and currently services on the AAS Council.