NotesCaféWorld HistoryContents
UPPCS Mains
2026 Edition
General Studies Paper I
Smart Notes

World History

English Medium
8
Chapters
39
Topics
106
Figures & Maps
39
Tables
What's Inside
  1. 01Industrial Revolution and the Age of Imperialism
  2. 02Age of Revolutions and Nationalism (1775–1871)
  3. 03Russian Revolution and the Rise of Communism
  4. 04The First World War and the Interwar Years (1914–1939)
  5. 05The Second World War (1939–1945)
  6. 06Cold War, World Peace Efforts and Non-Alignment
  7. 07Decolonisation in Asia and Africa
  8. 08Political Philosophies: A Comparative View
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World History
UPPCS Mains · Smart Notes

Contents

World History · General Studies Paper I
  1. 01Industrial Revolution and the Age of Imperialism6 topics
    1. 1.1Origins of the Industrial Revolution: Why Britain Was First and Its Two Phases
    2. 1.2Socio-Economic Transformation: Society, Labour and Women
    3. 1.3Impact of the Industrial Revolution on India
    4. 1.4Spread of Industrialisation and Its Long-Term Global Effects
    5. 1.5Colonialism and Imperialism: Concepts and Drivers of New Imperialism
    6. 1.6Scramble for Africa and Imperialism in Asia
  2. 02Age of Revolutions and Nationalism (1775–1871)6 topics
    1. 2.1Revolutions in the Americas: American Independence and Latin American Liberation (1775–1825)
    2. 2.2French Revolution (1789–1799): Enlightenment, Course and the Jacobins
    3. 2.3Napoleon Bonaparte (1799–1815)
    4. 2.4Congress of Vienna, Reaction and the Growth of Nationalism (1815–1848)
    5. 2.5Unification of Germany (1815–1871)
    6. 2.6Unification of Italy (1815–1871)
  3. 03Russian Revolution and the Rise of Communism4 topics
    1. 3.1Tsarist Russia and the Causes of the Revolution
    2. 3.2The Revolutions of 1917: February to October
    3. 3.3From Lenin to Stalin: Civil War, NEP and the Soviet State (1918–1953)
    4. 3.4Global Impact of the Russian Revolution and the Chinese Revolution (1911–1949)
  4. 04The First World War and the Interwar Years (1914–1939)7 topics
    1. 4.1Causes of the First World War and the Balkan Crisis
    2. 4.2Course of the War and the Treaty of Versailles (1914–1919)
    3. 4.3Consequences of the First World War
    4. 4.4The Great Depression and the Retreat of Democracy
    5. 4.5Fascism in Italy: Mussolini’s Rise, Rule and Foreign Policy
    6. 4.6Nazism in Germany: Hitler’s Rise and the Nazi State (1919–1939)
    7. 4.7League of Nations and the Failure of Collective Security (1920–1939)
  5. 05The Second World War (1939–1945)4 topics
    1. 5.1Causes of the Second World War and Hitler’s Role
    2. 5.2Course of the War and the Holocaust (1939–1945)
    3. 5.3India and the Two World Wars
    4. 5.4Consequences of the Second World War
  6. 06Cold War, World Peace Efforts and Non-Alignment4 topics
    1. 6.1World Peace Efforts after the Second World War
    2. 6.2The Cold War: Origins, Crises and End (1945–1991)
    3. 6.3Non-Aligned Movement
    4. 6.4Redrawal of National Boundaries (1919–1991)
  7. 07Decolonisation in Asia and Africa4 topics
    1. 7.1Why Decolonisation Happened
    2. 7.2Decolonisation in Asia
    3. 7.3Middle East and Africa: Israel, Suez and African Independence
    4. 7.4Legacy of Colonialism and Problems of the New States
  8. 08Political Philosophies: A Comparative View4 topics
    1. 8.1Liberalism and Capitalism
    2. 8.2Socialism and Communism
    3. 8.3Fascism and Nazism as Ideologies
    4. 8.4Ideologies Compared: State, Individual, Economy and Democracy
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World HistoryChapter 01 · Topic 1
Chapter 01

Industrial Revolution and the Age of Imperialism

World History · 6 topics
Topic 1

Origins of the Industrial Revolution: Why Britain Was First and Its Two Phases

Chapter Overview

The Industrial Revolution, which began in Britain around 1760, moved production from hand tools to machines, steam and factories. It created the modern middle and working classes, turned India into a supplier of raw materials and a market for British goods, and pushed the industrial powers into the New Imperialism, whose rules for dividing Africa were set at the Berlin Conference of 1884–85.

Topic 1 explains why Britain industrialised first and traces the two phases of the revolution. Topics 2 and 3 follow its effects on British society and on India’s economy. Topic 4 follows industry to Europe, the USA and Japan and sums up its global effects. Topics 5 and 6 cover the ideas and drivers of imperialism and the carving up of Africa and Asia.

Topic Flow
  1. 1Origins and Two Phases
  2. machines remade
  3. 2Society, Labour and Women
  4. the same engine reshaped
  5. 3Impact on India
  6. meanwhile industry spread
  7. 4Spread and Global Effects
  8. rivalry for resources led to
  9. 5Concepts and Drivers of New Imperialism
  10. played out in
  11. 6Scramble for Africa and Imperialism in Asia

The Industrial Revolution began in Britain around 1760, when production moved from hand tools and animal power to machines driven by water, coal and steam. Arnold Toynbee’s lectures, published in 1884, made the term popular.

Why Britain Was First

  1. Agricultural revolution: enclosure and new crop rotations raised farm output, fed a fast-growing population and released surplus labour for mills and mines; e.g. enclosure of common land (1750–1820); Norfolk four-course rotation with turnips and clover; England’s population rose from about 5.7 million (1751) to nearly 17 million (1851).
  2. Capital from trade and slavery: profits of the Atlantic slave trade, Caribbean sugar and the East India Company formed a large pool of capital for mines and mills; e.g. Bank of England (1694) and the London Stock Exchange channelled it to industry.
  3. Coal and iron together: large coal and iron deposits lay close to each other and to rivers or the sea, so fuel and ore were cheap to move; e.g. Abraham Darby’s coke smelting at Coalbrookdale (1709) freed iron-making from charcoal.
  4. Stable, merchant-friendly state: after 1688 a parliamentary monarchy protected property, contracts and patents, while France stayed absolutist and Germany and Italy stayed divided; e.g. Glorious Revolution (1688); an island position kept wars off British soil.
  5. Markets at home and abroad: a growing middle class wanted cotton cloth, pottery and metal goods, while colonies gave captive markets and raw cotton; e.g. the Americas, India and West Africa; demand for cheap cotton cloth pulled supply.
  6. Inventors, canals and roads: patent law protected practical inventors, scientific societies linked them to industry, and canals and toll roads cut the cost of moving goods; e.g. Bridgewater Canal (1761) halved the price of coal in Manchester; Lunar Society of Birmingham.
Why Britain was the first country to industrialise
Fig. 1.1 Why Britain was the first country to industrialise

The First Phase (1760–1840): Cotton, Iron and Steam

  1. Cotton led the way: a chain of spinning and weaving inventions moved cotton manufacture from cottages into water- and steam-powered mills; e.g. raw cotton imports rose from 2.5 million lb (1760) to 22 million lb (1787); Arkwright’s Cromford Mill (1771) began the factory system (see Topic 2).
  2. Steam and iron: Watt’s engine brought power to any site, away from rivers, and Cort’s puddling made cheap wrought iron for machines, bridges and rails; e.g. pig iron output rose from about 25,000 tons (1720) to 250,000 tons (1806); Boulton and Watt engines from 1775.
  3. Railway age: steam locomotives cut the time and cost of moving coal and goods and set off a railway-building boom in the 1840s; e.g. Stockton–Darlington Railway (1825); Liverpool–Manchester Railway (1830); “railway mania” of the 1840s.
Table 1.1 Each invention removed a bottleneck left by the one before: faster weaving created a yarn shortage that the jenny, frame and mule solved.
YearInventorInventionWhat it changed
1709Abraham DarbyCoke smelting of ironIron made without charcoal
1712Thomas NewcomenAtmospheric steam enginePumped water out of mines
1733John KayFlying shuttleFaster weaving; yarn shortage
1764James HargreavesSpinning jennyMany threads spun at once
1769Richard ArkwrightWater frameStrong yarn; water-powered mills
1769James WattSteam engine with separate condenserEfficient power for mines and mills
1779Samuel CromptonSpinning muleFine and strong yarn
1784Henry CortPuddling and rollingCheap wrought iron
1785Edmund CartwrightPower loomWeaving mechanised
1825George StephensonStockton–Darlington RailwayFirst public steam railway
1829George and Robert StephensonRocket locomotiveWon the Rainhill trials; fast rail travel
Location of the early industrial centres of Britain
Fig. 1.2 Location of the early industrial centres of Britain

The Second Phase (1840–1914): Steel, Electricity and Chemicals

  1. Cheap steel: new converters and furnaces made steel cheap enough for rails, bridges, ships and machines, starting an age of heavy engineering; e.g. Bessemer converter (1856); Siemens–Martin open-hearth process (1860s).
  2. Science-based industries: electricity, synthetic chemicals and the internal combustion engine grew from laboratory research, where Germany and the USA took the lead; e.g. Siemens dynamo (1866); Edison’s electric bulb (1879); synthetic dyes and fertilisers; Benz motor car (1885); petroleum refining.
  3. Mass production: standard parts, the moving assembly line and scientific management raised output per worker and made consumer goods cheap; e.g. Ford’s moving assembly line for the Model T (1913); F.W. Taylor’s Principles of Scientific Management (1911).
Table 1.2
YearInventorInventionWhat it changed
1856Henry BessemerBessemer converterCheap steel in bulk
1860sSiemens and MartinOpen-hearth furnaceBetter steel from pig iron and scrap
1866Werner von SiemensDynamoPractical electric power
1879Thomas EdisonElectric bulb; Pearl Street power station (1882)Electric light and power grids
1885Karl BenzPetrol motor carMotor transport by road
1913Henry FordMoving assembly lineCheap cars; mass production

Historiographical Debate: Revolution or Slow Change?

Historians agree that the change was deep, but they differ on how sudden it was and on why it happened in Britain rather than in Asia.

  1. Sudden break or slow growth: Toynbee and Rostow saw a sudden take-off, but later estimates show national income grew under 2% a year before the 1830s; e.g. Rostow’s “take-off” of 1783–1802 (1960); N.F.R. Crafts’ estimates (1985).
  2. Why not China or India?: Pomeranz and Allen argue that cheap coal, high wages and colonial resources, rather than any cultural superiority, gave Britain its lead; e.g. Kenneth Pomeranz, The Great Divergence (2000); Robert Allen, The British Industrial Revolution in Global Perspective (2009).

Legacy and Present Relevance

  1. Workshop of the world: by the mid-nineteenth century Britain led the world in coal, iron and cotton goods and put this lead on show for other nations; e.g. Great Exhibition at the Crystal Palace, London (1851).
  2. Industrial revolutions today: the steam and electricity phases are now counted as the first two of four, with artificial intelligence and automation called the fourth; e.g. Klaus Schwab, The Fourth Industrial Revolution (2016); Ironbridge Gorge, a UNESCO World Heritage Site since 1986.

Britain was first because farming, capital, coal, a stable state and markets came together there, and its lead set the pattern that other nations copied.

Based on NCERT, Standard Books references, Keywords from Syllabus and Previous Year question Papers

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World HistoryChapter 01 · Topic 2
Topic 2

Socio-Economic Transformation: Society, Labour and Women

These machines and mills also remade where and how the British people lived and worked. By 1851 about half of Britain’s people lived in towns, a first for any large country (Census of 1851).

Cities, Classes and the Factory

  1. Rapid urbanisation: industrial towns grew faster than housing, water and drains could keep up, packing workers into crowded back-to-back slums; e.g. Manchester grew from about 25,000 (1772) to over 250,000 (1851); Liverpool, Birmingham and Glasgow grew alike.
  2. New social classes: factory owners and bankers formed a powerful industrial middle class, while wage-earning workers formed a new working class or proletariat; e.g. landed aristocracy declined in relative weight; the Reform Act (1832) gave the middle class the vote.
  3. Factory discipline: work moved from the home-based putting-out system to the factory, where the clock, the bell and the machine set the pace; e.g. 12 to 16 hour shifts; fines for lateness; E.P. Thompson’s essay on time and work-discipline (1967).
  4. Health and housing: open sewers, dirty water and coal smoke brought epidemics and early deaths, and dust in mines and mills caused lung disease; e.g. cholera in 1831–32 and 1848–49; average age at death of Manchester labourers’ families was 17 (Chadwick, 1842).
  5. Family and culture: the family stopped being a unit of production, and poets and novelists attacked the ugliness and cruelty of the new industrial towns; e.g. Romantic poets Blake (“dark Satanic Mills”, c.1808) and Wordsworth; Dickens’ Hard Times (1854); Gaskell’s Mary Barton (1848).
How the Industrial Revolution changed the way people lived
Fig. 1.3 How the Industrial Revolution changed the way people lived

Women and Children at Work

  1. Women in mills and mines: women worked long shifts in cotton mills and coal pits for a third to a half of a man’s wage for similar hours; e.g. women and children were over half of cotton-mill workers in the 1830s; after the Children’s Employment Commission report, the Mines Act (1842) banned women and boys under 10 underground.
  2. Separate spheres: middle-class ideals placed men in paid work and women in the home, so women’s earnings came to be seen as merely supplementary; e.g. the Victorian “angel in the house” ideal; lasting effect on gender roles and pay gaps.
  3. Child labour and Factory Acts: children from five or six years worked in mills and mines until inquiries led Parliament to limit their hours and age; e.g. Factory Act (1833): no mill work under 9, at most 9 hours a day for ages 9–13, factory inspectors; Ten Hours Act (1847).
Table 1.3 Common ground: each law followed an inquiry or a protest, so reform came step by step rather than in one plan.
ActYearMain provision
Combination Acts1799–1800Trade unions banned
Repeal of the Combination Acts1824Unions no longer illegal
Reform Act1832Vote to the industrial middle class
Factory Act1833No children under 9 in textile mills; inspectors
Mines Act1842No women or boys under 10 underground
Factory Act1844Women’s work limited to 12 hours a day
Ten Hours Act184710-hour day for women and young workers
Public Health Act1848Local boards of health for water and drains
Reform Acts1867, 1884Vote to urban, then rural, working men
Forster’s Education Act1870Board schools; attendance compulsory from 1880
Trade Union Act1871Unions given legal status

Workers Organise: From Luddites to Chartists

  1. Luddites: skilled textile workers broke the machines that were taking their jobs and lowering their wages, and troops were sent to crush them; e.g. machine-breaking in Nottinghamshire, Yorkshire and Lancashire (1811–16); Frame Breaking Act (1812) made it a capital crime.
  2. Chartism: the first mass working-class political movement demanded votes for all men and other democratic reforms through huge petitions; e.g. People’s Charter (1838) with six points including a secret ballot; petitions rejected in 1839, 1842 and 1848; earlier, the Peterloo massacre at a reform meeting in Manchester (1819).
  3. Trade unions: banned in 1799, unions spread after the ban was lifted, first among skilled craftsmen and later among unskilled dock and gas workers; e.g. Combination Acts repealed (1824); Tolpuddle Martyrs transported (1834); Trades Union Congress (1868); London Dock Strike (1889).
Workers’ protest and reform laws in Britain, 1811–1868
Fig. 1.4 Workers’ protest and reform laws in Britain, 1811–1868

The Standard of Living Debate: Optimists and Pessimists

Figures on wages, prices and heights before 1850 are patchy, so historians read the same evidence in opposite ways on whether workers gained or lost.

  1. Optimist view: real wages and consumption rose, especially after 1840, as cheap cotton clothes, tea and sugar reached ordinary homes; e.g. J.H. Clapham, T.S. Ashton and R.M. Hartwell.
  2. Pessimist view: real wages stagnated between 1780 and 1820, average heights fell and workers lost the independence and security of craft life; e.g. J.L. and Barbara Hammond; E.J. Hobsbawm; E.P. Thompson, The Making of the English Working Class (1963).

Legacy and Present Relevance

  1. Public health and schooling: reports on slum conditions made the state take charge of water, drains and elementary schools, the seed of the later welfare state; e.g. Chadwick’s Sanitary Report (1842); Public Health Act (1848); Forster’s Education Act (1870).
  2. Roots of socialism: the misery of early factory labour inspired utopian socialists and then Marx and Engels, whose ideas shaped labour politics worldwide; e.g. Robert Owen’s New Lanark; Fourier; Saint-Simon; Engels, The Condition of the Working Class in England (1845); Communist Manifesto (1848) (see Ch 8, Topic 2).
  3. Labour rights today: limits on child labour and working hours first won in Britain now appear in ILO conventions and in India’s labour law; e.g. ILO Conventions 138 (1973) and 182 (1999), ratified by India in 2017; India’s four Labour Codes, in force from 21 November 2025, also cover gig workers.

The Industrial Revolution was as much a social change as a technical one, and the reforms it forced laid the base of modern labour rights and public health (SDG 8).

Based on NCERT, Standard Books references, Keywords from Syllabus and Previous Year question Papers

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