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The Big Change, in detail
The Big Change is Frederick Lewis Allen's account of how the United States was transformed between 1900 and 1950, covering the shifts in technology, economics, social life, and values that remade American society in half a century. Allen is best known for Only Yesterday, his brilliant popular history of the 1920s, and The Big Change has a similar tone: informal, direct, and free of academic apparatus, written by a journalist who spent his career as editor of Harper's Magazine and believed that the job of the historian was to make history readable.
Allen's central argument is that the most significant change in American life during this period was not any particular event—not World War One, not the Depression, not World War Two—but the broad diffusion of prosperity and material comfort down the income ladder. In 1900, the United States had a small, wealthy upper class, a large and precarious working class, and very little in between. By 1950, something genuinely new had emerged: a mass middle class with cars, refrigerators, telephones, and disposable income. Allen tracks this transformation through wages, purchasing power, housing standards, and the emergence of consumer goods that had been luxuries in 1900 and were necessities by 1950.
The book also covers the political economy of the transformation: the rise of unions, the New Deal's restructuring of labor relations and financial regulation, the professionalization of management, and the evolution of corporate capitalism from the robber baron era toward the managerial capitalism of the postwar period. Allen is not a radical; his sympathies are liberal in the older American sense of valuing individual freedom and practical improvement. He tells the story of American capitalism's self-reform without treating it as inevitable or as sufficient.
The Big Change has aged in complicated ways. Its confidence about the permanence of broadly shared prosperity looks different from 2026 than it did from 1952. Its treatment of African American experience is inadequate by any modern standard. But as a portrait of how ordinary American life changed between 1900 and 1950—the texture of daily life, the transformation of work, the emergence of the consumer economy—it remains one of the most readable and informative accounts available.
The big ideas
- 1.
The most significant change in American life between 1900 and 1950 was the broad diffusion of material prosperity to a mass middle class. This was not inevitable; it required specific political and economic choices.
- 2.
The automobile, electricity, and the telephone changed the daily texture of American life more profoundly than any political event of the period. Technology was the primary driver of social transformation.
- 3.
The robber baron era's concentration of wealth and power provoked the Progressive movement, the antitrust era, and ultimately the New Deal—a self-correcting mechanism in democratic capitalism that Allen sees as characteristic of American history.
