Innovation & Wealth › Industrial revolution
The Industrial Revolution
c. 1760–1840 (Britain first)· Event· Innovations & industries
Mostly agreedGood evidence; some details uncertain.
Britain's shift from hand tools and muscle to machines, coal and steam: the first sustained rise in output per person.
See it on the Innovation & Wealth map →What happened
From about 1760, British entrepreneurs mechanized cotton spinning, smelted iron with coke instead of charcoal, and used coal-fired steam engines to pump mines and drive mills. Growth was slow at first: income per person rose well under 1% a year before 1830, faster afterward. Cheap cloth and iron spread worldwide. Owners and consumers gained early; many workers saw flat real wages for decades, a lag economists call 'Engels' pause,' while handloom weavers were ruined.
Impact on society and the economy
For the first time, output grew faster than population for generations, starting the long climb in living standards that eventually reached most of the world.
How we know
Patent records, customs data on cotton imports, wage and price series, factory inquiries, and modern reconstructions of national output by economic historians such as Nicholas Crafts and Robert Allen.
Still debated
Why Britain first? Candidates include cheap coal, high wages that made machines pay, secure property law, empire and slavery profits, and a culture of tinkering. Historians weigh them differently.
Inside this (6)
Connections (8)
▸Black Death and the labor shortage raised wages, a possible root of The Industrial RevolutionDebated
The connection
The plague of 1347–51 killed perhaps a third to half of Europe's people. With workers scarce, English wages rose sharply and stayed relatively high. Some economists argue this high-wage, low-population path, reinforced by later trade and urban growth, made labor dear in Britain, so by the 1700s replacing workers with coal-powered machines paid off.
When and how
England and northwest Europe, 1350s–1700s; argued by economic historians Robert Allen, Nico Voigtländer and Hans-Joachim Voth.
How sure are we?
Wage series show English real wages rose after the plague and stayed above southern Europe's; the chain of cause to 1760 is a modeled argument, not documented.
Debates
Critics say English wages were not unusually high for most workers, and four centuries is a long gap; the link remains a hypothesis.
▸East India Company rule in India may have helped finance The Industrial RevolutionDebated
The connection
Indian nationalists such as Dadabhai Naoroji argued that taxes, salaries and profits drained from India, starting with Bengal after 1765, enriched Britain as it industrialized. Some historians add that Company policies helped British cotton displace Indian weaving, giving Lancashire a vast market. Others counter that the sums were small relative to British investment.
When and how
Bengal and Britain, from 1757; the 'drain theory' set out by Naoroji from the 1860s and revived by historians such as Utsa Patnaik.
How sure are we?
Transfers are documented but hard to value: estimates range from a minor share of British savings to Patnaik's widely disputed $45 trillion figure.
Debates
Economic historians such as Patrick O'Brien find empire profits too small to explain industrialization; critics say that misses captive markets and raw materials. Unresolved.
▸Sugar plantations and the Atlantic slave trade is argued to have helped finance The Industrial RevolutionDebated
The connection
Eric Williams argued in 1944 that profits from sugar and the slave trade funded British banks, insurers and industry, citing Liverpool, Bristol and Glasgow merchants who backed mills and ironworks. Slave-grown cotton also fed the mills, and the compensation paid to owners after 1834 was partly reinvested, as UCL's Legacies of British Slavery database traces.
When and how
Britain and the Caribbean, 1700s–1830s, especially Liverpool, Bristol, Glasgow and London; argued in Williams's Capitalism and Slavery (1944).
How sure are we?
Individual links are documented, such as slave-trade merchants who founded banks or invested in industry; their overall share of British investment is an estimate.
Debates
Economists such as Stanley Engerman found slave-trade profits small relative to British investment; others, including Joseph Inikori, argue the wider Atlantic slave economy was central.
▸British Agricultural Revolution freed labor and food for The Industrial RevolutionDebated
The connection
Higher output per farm worker meant a smaller share of people could feed the rest. Agriculture's share of English workers fell from roughly half around 1700 to about a fifth by 1850, while population roughly tripled. That supplied food for growing towns and workers for mills, and landed profits flowed into canals and mines.
When and how
England, 1700–1850, from the farm counties of the east and south to the industrial north and Midlands.
How sure are we?
Occupational records, censuses from 1801, and output estimates show the shift; its timing and size depend on reconstructions that differ.
Debates
Some historians find farm productivity rose mostly before 1700 or after 1800, so whether it freed labor exactly when industry needed it is disputed.
▸Newcomen steam engine drained the coal mines that fueled The Industrial RevolutionMostly agreed
The connection
Coal mines flooded as they went deeper. Thomas Newcomen's 1712 engine, first installed near Dudley, pumped water out reliably, and more than a thousand were built over the 1700s. Deeper mines meant cheap, abundant coal for iron smelting, steam power and home heating, an energy base that set Britain apart.
When and how
Near Dudley Castle, Staffordshire, 1712; then coalfields across Britain, especially the northeast and Midlands, and Cornwall's tin and copper mines.
How sure are we?
Engine counts compiled by historians and mine records; British coal output rose roughly fivefold over the 1700s.
Debates
How much Britain's lead depended on cheap coal is debated: Kenneth Pomeranz and Robert Allen stress it; others emphasize ideas and institutions.
▸The Industrial Revolution began with Cotton spinning machines (jenny, water frame, mule)Mostly agreed
The connection
Cotton was the first industry transformed. Spinning machines from 1764 to 1779 slashed costs, and cotton grew from a minor trade to Britain's largest export, about half of exports by value around 1830. Factory methods, machine-building skills and capital pioneered in cotton then spread to iron, engineering and railways.
When and how
Lancashire, Derbyshire and Nottinghamshire, England, 1760s–1830s.
How sure are we?
Customs records show raw cotton imports rising more than fiftyfold between the 1760s and 1830s; cotton's share of exports is well documented.
Debates
Some historians argue the revolution was broader and more gradual, with coal, iron and many small trades mattering as much as cotton's dramatic story.
▸The Industrial Revolution was followed by Second Industrial Revolution: steel, oil, electricityWell documented
The connection
The first revolution laid the foundations: coal, iron, steam power, factories, railways and a growing class of engineers and investors. From about 1870 new science-based industries built on them: steel replaced iron, electricity and oil joined steam, and leadership shifted from Britain toward Germany and the United States.
When and how
Britain, about 1760–1840; then Western Europe and North America, about 1870–1914.
How we know
Production statistics show continuous growth across both periods; dividing it into two 'revolutions' is a convention popularized by historians such as David Landes.
Debates
Whether there was a sharp break or one long process is debated, as is why Britain lost its lead: complacency, older plants, or simply others catching up.
▸The Industrial Revolution began the escape from poverty seen in Fall of extreme global povertyMostly agreed
The connection
Before about 1800, most people everywhere lived near bare subsistence. Machine power and factories let output per person grow steadily for the first time, first in Britain, then Europe and North America. The late-20th-century fall in poverty was largely the same process, industry, cities and factory jobs, reaching China, India and other poor countries.
When and how
Britain from about 1760; spread through the 1800s to Europe, the US and Japan; reached East Asia after 1950 and China after 1978.
How sure are we?
Long-run income estimates from the Maddison Project and World Bank poverty data show near-flat incomes before 1800 and sustained growth wherever industry spread.
Debates
Why industry took nearly two centuries to reach most of the world, whether because of colonialism, institutions, geography or policy, is one of economics' biggest debates.