Value of $100 in 1913, adjusted to 1970

What happened to prices between 1913 and 1970

Between 1913 and 1970, the Consumer Price Index went from 9.9 to 38.8. Cumulatively, prices increased 291.9%, which works out to an average of 2.43% per year. Put differently, a dollar in 1913 bought what $0.26 buys in 1970.

1913 is where this site’s price history begins, because it’s where the Bureau of Labor Statistics’ own consumer price data begins. The CPI wasn’t published in real time back then; the BLS built the earliest index retroactively from retail price records collected starting in 1913, which makes every dollar figure on this site ultimately anchored to that year’s prices. It was also the year the machinery of modern federal economic policy was built. The 16th Amendment, ratified in February, cleared the constitutional path for a federal income tax, and the Revenue Act that followed in October imposed a top rate of just 7% on income above $500,000, a narrow tax that would later be reshaped into the broad-based system that funds the government today. In December, Congress passed the Federal Reserve Act, creating the central bank that would eventually take on fighting inflation as one of its core jobs, including the 19%-plus interest rates it deployed against the 1970s and early 1980s price surge. Consumer life in 1913 was correspondingly simple by later standards: a first-class stamp cost 2 cents, a price that held from 1885 all the way to 1917, and the Ford Motor Company introduced the moving assembly line at its Highland Park plant that year, a manufacturing breakthrough that would spend the next decade driving down the cost of a car faster than prices elsewhere were rising.

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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.

More about inflation in 1970 →