Value of $100 in 1915, adjusted to 1958

What happened to prices between 1915 and 1958

Between 1915 and 1958, the Consumer Price Index went from 10.1 to 28.9. Cumulatively, prices increased 186.1%, which works out to an average of 2.48% per year. Put differently, a dollar in 1915 bought what $0.35 buys in 1958.

Consumer prices rose 1.0% in 1915, the second straight year of near-flat inflation before the wartime price surges of 1916 through 1918. The year’s defining event had nothing to do with prices directly: a German submarine sank the British liner Lusitania off the Irish coast on May 7, killing 128 Americans and hardening U.S. opinion against Germany two years before the country entered the war. Economically, 1915 was a turning point of a different kind. A recession that had dragged on since 1913 began lifting as Britain and France placed growing orders for steel, munitions, and other war materiel with American manufacturers, and U.S. exports to the Allied powers climbed sharply through the year. That demand would keep building through 1916, eventually pulling prices up with it. On the regulatory side, the Federal Trade Commission opened for business in March, taking on enforcement of the Clayton Antitrust Act that Congress had passed the previous fall. A first-class stamp still cost 2 cents, unchanged since 1885 and still two years from its first wartime increase.

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The destination year: 1958

Consumer prices rose 2.8% in 1958, down only slightly from 1957’s 3.3% even as the country sank into the sharpest postwar recession to that point, an early sign that inflation and a shrinking economy could coexist rather than trade off against each other. The National Bureau of Economic Research dates the downturn’s trough to that April, with unemployment peaking near 7.5% that summer, the worst reading since the 1930s. The Post Office raised first-class postage to 4 cents that August 1, up from 3 cents, the rate’s first change since 1932. Washington answered the Soviet Union’s technological lead that summer too: Eisenhower signed the National Aeronautics and Space Act on July 29, establishing NASA, which opened for business that October 1 to compete with the Soviet space program after the shock of Sputnik the year before. Consumer prices finished 1958 191.9% above their 1913 level. The minimum wage held at $1.00 an hour, and first-class postage rose to 4 cents that August, the first increase since 1932.

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