Value of $100 in 1956, adjusted to 1970

What happened to prices between 1956 and 1970

Between 1956 and 1970, the Consumer Price Index went from 27.2 to 38.8. Cumulatively, prices increased 42.6%, which works out to an average of 2.57% per year. Put differently, a dollar in 1956 bought what $0.70 buys in 1970.

Consumer prices rose 1.5% in 1956, a return to mild inflation after they had fallen 0.4% in 1955, the only annual decline of the decade. The two years sat in the calmest stretch of the postwar index, a lull between the Korean War price surge earlier in the 1950s and the acceleration that would return in the 1970s. Congress had already raised the wage floor into that calm: the Fair Labor Standards Amendments of 1955, signed the previous August, took effect March 1 and lifted the federal minimum wage from 75 cents to $1 an hour, the first increase since 1950. Eisenhower signed a longer-lasting commitment on June 29, the Federal-Aid Highway Act, funding 41,000 miles of controlled-access highway at 90% federal cost to build the Interstate System, the largest public-works program the country had undertaken. He won a second term that November, carrying 41 states and about 57% of the popular vote in a rematch against Adlai Stevenson. Abroad, the Suez Crisis broke the calm on the supply side: Egypt nationalized the canal on July 26, and after Israel invaded the Sinai on October 29 with British and French forces following, the canal’s closure and damaged pipelines squeezed oil shipments to Western Europe for months. Consumer prices stood 174.7% above their 1913 level by 1956, up 94% since 1940 alone, even after a decade that had barely moved the index. First-class postage held at 3 cents, unchanged since 1932.

More about inflation in 1956 →

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.

More about inflation in 1970 →