Rome and the vanishing denarius
The Roman denarius offers the most thoroughly documented early case of debasement. Under Augustus, the coin weighed about 3.9 grams and was nearly pure silver. In 64 AD, Nero reduced its weight to about 3.4 grams and its silver content to roughly 94 percent, partly to pay for rebuilding Rome after the great fire. His successors continued the reductions. By the late 260s, under Gallienus, the denarius's successor, the antoninianus, often contained less than 5 percent silver. It had become a bronze coin with a thin silver coating that wore away with handling.
Rising prices followed the falling silver content. Grain prices recorded in papyri from Roman Egypt rose many times over during the second half of the third century. In 301 AD, Diocletian responded with the Edict on Maximum Prices, which set legal ceilings on more than a thousand goods and services and prescribed death for those who exceeded them. The contemporary writer Lactantius reported that goods disappeared from the markets, and the edict was soon abandoned in practice.
Approximate silver content of the main Roman silver coin. Individual coins varied widely, and these values summarize typical findings from metallurgical studies.
England and Old Coppernose
The same method reappeared in Tudor England. During the Great Debasement, from 1544 to 1551, the government of Henry VIII and then of his son Edward VI reduced the silver content of English coins from 92.5 percent, the sterling standard, to 25 percent. The Crown kept the silver it no longer put into the coins and used the proceeds to finance war. On Henry's silver testoons, the thin coating wore away first from the raised nose of his portrait, exposing the copper beneath and earning him the nickname Old Coppernose.
From metal to paper
Paper money removed the physical limit on debasement. Reducing the silver in coins required labor and left evidence in every purse, while printing notes required neither. In France, John Law's Banque Royale issued large quantities of paper livres between 1718 and 1720, tied to inflated expectations of profit from the Mississippi Company. The scheme collapsed in 1720. During the Revolution, France issued paper assignats, initially backed by confiscated church lands. The government printed them in such quantities that they became nearly worthless by 1796, despite laws that imposed severe penalties, including death during the Terror, on those who undermined the currency.
Central banking and the modern dollar
Central banking placed the expansion of money under permanent institutional management. The Federal Reserve opened in 1914. Measured by the Consumer Price Index, a dollar from that year now buys about three cents of goods, a loss of roughly 97 percent of its purchasing power. About three quarters of that loss occurred before 1971, while the dollar remained convertible into gold for foreign governments. On August 15, 1971, President Nixon closed that convertibility, and the dollar has since been anchored only by the policies of the Federal Reserve and the willingness of people to use it.
The scale of modern monetary expansion is large by any historical measure. The Federal Reserve's balance sheet grew from about $870 billion in 2007 to nearly $9 trillion at its peak in 2022. For much of the period from 2009 to 2021, ordinary savings accounts paid interest below the rate of inflation, so savers lost purchasing power even as their balances grew.
The common mechanism
Every episode in this history shares one mechanism. Debasement transfers purchasing power from those who hold money toward those who receive new money first, and toward debtors, whose obligations shrink in real terms. The first spender of new money buys at old prices, and by the time the new money reaches ordinary wages, prices have already risen. Module 3 models this transfer directly. Because governments are usually both the first recipients of new money and among the largest debtors, they have consistently been its principal beneficiaries.
Gold has kept its purchasing power across millennia largely because no authority can create it at will. Advocates of a gold standard argue that this is precisely why governments abandoned it. Critics respond that the same rigidity can deepen economic crises, and they note that countries that left the gold standard earliest during the Great Depression generally recovered soonest. The questions below invite you to weigh both arguments.
Was debasement always harmful?
Consider who held money and who owed it in each episode. Debasement harmed savers and people on fixed incomes, but it lightened the burden on debtors. Some economists argue that moderate, predictable inflation can ease adjustment during recessions. Others argue that any persistent debasement is a hidden tax. Identify which groups each argument emphasizes.
Why did governments leave gold?
Proponents of hard money emphasize that gold limits a government's ability to spend beyond its revenue. Economic historians such as Barry Eichengreen emphasize that the gold standard transmitted financial crises between countries and prevented central banks from responding to them. Both explanations can be partly true. Consider what evidence would help you judge their relative weight.
How does this history connect to Bitcoin?
Bitcoin's designers wrote a fixed issuance schedule into its software, in part as a response to the pattern described on this page. Module 5 compares the supply growth of gold, Bitcoin, and dollars, and examines whether costly production is what protects money from debasement.
Sources
Roman coinage figures follow the denarius and third-century debasement summaries of metallurgical studies. Tudor figures follow the Great Debasement. Federal Reserve balance sheet figures follow the Federal Reserve Balance Sheet Developments report. Purchasing power of the dollar is computed from the Bureau of Labor Statistics Consumer Price Index.
Module 2, Purchasing power over time Module 3, Central banks and the money supply