Value of $100 in 1926, adjusted to 1970

What happened to prices between 1926 and 1970

Between 1926 and 1970, the Consumer Price Index went from 17.7 to 38.8. Cumulatively, prices increased 119.2%, which works out to an average of 1.80% per year. Put differently, a dollar in 1926 bought what $0.46 buys in 1970.

Consumer prices rose 1.1% in 1926, a third straight year of mild inflation and part of the price stability that defined the middle of the decade. Florida’s real estate boom, which had peaked the previous year on speculative buying of undeveloped land, ended abruptly that September when the Great Miami Hurricane made landfall near the city, killing hundreds and wrecking the market for land whose value had rested on continued speculation rather than anything underneath it. In Detroit, Henry Ford moved his company to a five-day, 40-hour work week without cutting pay, a break from the standard six-day schedule that other large employers would gradually adopt over the following decades; Ford argued publicly that workers with more leisure time would also become better customers for the cars his factories built. Consumer prices remained low enough by historical standards that a first-class stamp still cost just 2 cents, the same price it had held since mid-1919.

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The destination year: 1970

Consumer prices rose 5.7% in 1970, up from 1969’s 5.5%, extending a run of faster price growth that stretched back to the mid-1960s, even as a recession that began in December 1969 pushed unemployment toward 6%. Prices and joblessness rising together confounded the era’s economic thinking, which held that policymakers could trade a little more inflation for a little less unemployment; 1970 was an early sign that trade-off was breaking down, a pattern that would harden into stagflation later in the decade. Washington restructured how it delivered mail that year: after postal workers staged the first strike ever by federal employees that March, Congress passed the Postal Reorganization Act in August, replacing the cabinet-level Post Office Department with the independent U.S. Postal Service. Environmental policy also took shape in 1970. An estimated 20 million Americans marked the first Earth Day on April 22, and the Environmental Protection Agency opened that December to enforce the Clean Air Act and the pollution rules that followed. The Vietnam War kept dividing the country: on May 4, National Guard troops fired on antiwar demonstrators at Kent State University in Ohio, killing four students and setting off strikes on hundreds of campuses. A median household earned $8,734 that year, a gallon of gas averaged 36 cents, and a first-class stamp cost 6 cents, the rate it had held since 1968. Prices stood 291.9% above their 1913 level by the end of 1970, a milestone that would look almost mild against the decade still to come.

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