Value of $100 in 1915, adjusted to 1965

What happened to prices between 1915 and 1965

Between 1915 and 1965, the Consumer Price Index went from 10.1 to 31.5. Cumulatively, prices increased 211.9%, which works out to an average of 2.30% per year. Put differently, a dollar in 1915 bought what $0.32 buys in 1965.

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: 1965

Consumer prices rose 1.6% in 1965, up from 1964’s 1.3% in a pickup that economists later mark as the start of the Great Inflation, a run of accelerating price increases driven by rising Vietnam War spending layered on top of new Great Society programs. The war itself escalated on the ground that March, when about 3,500 Marines came ashore at Da Nang, the first American combat troops committed to Vietnam; troop levels would climb toward 200,000 by year’s end. Domestic policy expanded just as fast: Medicare and Medicaid became law that July 30, creating federal health insurance for older and low-income Americans, and the Voting Rights Act, signed that August 6, banned literacy tests and other devices used to disenfranchise Black voters. The civil rights movement’s gains coexisted with urban unrest that same August, when a highway patrol traffic stop in the Watts neighborhood of Los Angeles set off six days of rioting that left 34 people dead. Consumer prices finished 1965 218.2% above their 1913 level. First-class postage held at 5 cents, and the minimum wage stayed at $1.25 an hour.

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