Like so many of the fields that have flourished in history departments in recent years, business history has an uneasy relationship with political history. When business history first emerged in the United States as a separate field in the 1920s, its founders stressed the importance of lavishing on business records the same reverence that political historians accorded the personal papers of lawmakers. Only in this way, business historians assumed, would it be possible to convince other historians of the centrality of business leaders—and, more broadly, of economic institutions—to the making of the nation.