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New Imperialism: European empires at their peak
c. 1870–1914· Idea, religion or movement· Global
Well documentedSolid records, physical evidence or scientific consensus.
From about 1870 to 1914, European powers, joined by the US and Japan, raced to seize colonies across Africa, Asia and the Pacific.
See it on the History map →What happened
Older empires had mostly held coasts and trading posts. After 1870, industrial powers pushed inland and claimed whole regions: Britain, France, Germany, Belgium, Italy, Portugal, the US and Japan all took part. Motives mixed: raw materials such as rubber and cotton, markets for factory goods, naval coaling stations, prestige, and a racist belief in a 'civilizing mission'. Steamships, quinine against malaria, telegraphs and machine guns made conquest cheap. By 1914 the British Empire alone ruled roughly a quarter of the world's people.
Why it matters
It pulled most of the world into European-run trade and politics, drew many of today's borders, and bred the rivalries and resentments behind both world wars and decolonization.
Think of it like
Like a speculative land rush: powers staked claims first, often just to block rivals, and worked out what the land was worth later.
How we know
Colonial government archives, treaties and maps, trade statistics, and writings by both imperialists and critics, such as J. A. Hobson's Imperialism (1902) and Lenin's 1917 pamphlet on imperialism.
Still debated
Historians still argue whether profit, strategy, nationalism or crises on the colonial frontier drove expansion most, and whether colonies actually paid off for the nations that held them.
Inside this (4)
Connections (8)
▸Industrial Revolution gave Europe the power for New Imperialism: European empires at their peakMostly agreed
The connection
Industry gave Europe both motive and means for empire. Factories wanted raw materials like cotton, rubber and palm oil, plus new markets. Steamships, railways, telegraphs, quinine against malaria, and repeating rifles and machine guns let small forces conquer and hold huge territories cheaply.
When and how
From the 1830s to 1914, in Africa, India, China and Southeast Asia; for example, British steam gunboats in the Opium Wars and Maxim guns at Omdurman, Sudan, in 1898.
How sure are we?
Military and trade records; historian Daniel Headrick's The Tools of Empire (1981) documents how specific technologies made conquest possible.
Debates and open questions
Technology explains how, but not fully why; historians debate whether economic need or politics and prestige mattered more.
▸Scramble for Africa was the climax of New Imperialism: European empires at their peakWell documented
The connection
The Scramble was New Imperialism at its most extreme: in about 30 years Europeans went from holding roughly a tenth of Africa to almost all of it. Rivalry between Britain, France and Germany, and fear of being left out, sped the land grab, while industrial weapons and medicine made it possible.
When and how
Across Africa, 1881–1914; the Berlin Conference (1884–85), hosted by Bismarck, set the rules for staking claims.
How we know
Maps of Africa from 1880 and 1914 make the change stark, and diplomatic records show powers claiming land partly to block rivals.
Debates and open questions
Historians debate whether the Scramble was driven by economic interests in Africa itself or by strategic rivalries in Europe, such as Britain's concern for Egypt and the Suez route to India.
▸Opium Wars were an early example of New Imperialism: European empires at their peakMostly agreed
The connection
Britain fought China in 1839–42, and with France in 1856–60, to force open trade, including in opium grown in British India. Steam gunboats easily beat Chinese forces. The resulting 'unequal treaties' gave Britain Hong Kong and foreigners special rights. Using industrial force to impose trade foreshadowed the empire-building after 1870.
When and how
Chinese coasts and rivers from Canton (Guangzhou) to Beijing; the Treaty of Nanjing (1842), the Treaty of Tianjin (1858), and the burning of Beijing's Summer Palace in 1860.
How sure are we?
British parliamentary debates, the treaty texts, and Chinese records such as Commissioner Lin Zexu's 1839 letter to Queen Victoria.
Debates and open questions
Because the Opium Wars predate 1870, some historians class them as 'free-trade imperialism', a different phase from the later rush for territorial colonies.
▸British Raj in India was the crown jewel of New Imperialism: European empires at their peakMostly agreed
The connection
India was Britain's most valuable possession, with nearly 300 million people by 1900. Indian taxes paid for a large army used across Asia and Africa, and India bought British goods. Protecting the routes to India, through Suez, Egypt and South Africa, drove much of Britain's further expansion. Queen Victoria became Empress of India in 1876.
When and how
British India, 1858–1947; Disraeli's government gave Victoria the title Empress of India in 1876; the 'jewel in the crown' phrase became common later.
How sure are we?
Trade and tax figures, Indian Army deployment records, and statements such as Viceroy Lord Curzon's 1901 remark that losing India would make Britain a third-rate power.
Debates and open questions
How much Britain actually profited from India, and how much wealth was drained from it, is debated; estimates differ enormously.
▸Meiji Restoration was Japan's response to New Imperialism: European empires at their peakWell documented
The connection
Japan watched China humbled in the Opium Wars and was itself forced to open its ports by Commodore Perry's US warships in 1853–54. Its new leaders chose rapid modernization to avoid colonization. Within decades Japan industrialized, built a modern army and navy, and joined the imperial powers itself, taking Taiwan in 1895 and Korea in 1910.
When and how
Japan from 1868, under the slogan 'rich country, strong army' (fukoku kyōhei); the Iwakura Mission (1871–73) toured the US and Europe to study Western states.
How we know
Meiji government documents, the Iwakura Mission's published reports, and leaders' own writings tying reform to national survival against the West.
Debates and open questions
Historians debate whether Japan's own expansion was mainly defensive, seeking security against the West, or ambition copied from Western empires.
▸New Imperialism: European empires at their peak fed the rivalries behind World War IMostly agreed
The connection
Competition for colonies strained European relations. Germany, a latecomer, demanded 'a place in the sun', challenged France in the Moroccan crises of 1905 and 1911, and built a navy that alarmed Britain. These clashes pushed Britain, France and Russia closer together, hardening the alliance blocs that went to war in 1914.
When and how
Morocco (Tangier 1905, Agadir 1911) and the Anglo-German naval race of about 1898–1912, driven by Kaiser Wilhelm II and Admiral Alfred von Tirpitz.
How sure are we?
Diplomatic records of the Moroccan crises, the 1904 Entente Cordiale settling Anglo-French colonial disputes, and naval building programs.
Debates and open questions
Lenin argued capitalist imperialism caused the war; many historians now think European and Balkan politics mattered more than colonies.
▸New Imperialism: European empires at their peak was undone by Decolonization: the end of empiresWell documented
The connection
The empires built in 1870–1914 lasted barely a lifetime. Colonial rule created Western-educated elites who turned ideas of nationhood and self-rule against their rulers. Two world wars drained the colonial powers, and from 1945 to 1975 nearly all their colonies became independent, mostly within the borders the empires had drawn.
When and how
Across Asia, Africa, the Middle East and the Caribbean, mostly 1945–1975; leaders included Nehru, Sukarno, Kwame Nkrumah, Ho Chi Minh and Jomo Kenyatta.
How we know
Independence dates and treaties, and colonial archives documenting the negotiations and wars of independence.
Debates and open questions
Whether imperial control truly ended, or continued as economic dependence, sometimes called neocolonialism, is still argued.
▸Rwandan genocide had roots in colonial ethnic policies of New Imperialism: European empires at their peakDebated
The connection
The 1994 genocide drew on ethnic labels hardened under colonial rule. Before colonization, Hutu and Tutsi were more fluid categories, linked partly to wealth and cattle. German and then Belgian rulers treated Tutsi as a superior 'race', ruled through Tutsi chiefs, and from 1933 issued identity cards stating each person's group, cards later checked at 1994 roadblocks.
When and how
Rwanda under German rule (from about 1897) and Belgian rule (1916–1962); a Belgian census in 1933–34 fixed ethnic labels on identity cards.
How sure are we?
Colonial administrative records and the identity cards themselves document the policy; historians such as Alison Des Forges and Mahmood Mamdani traced the link.
Debates and open questions
How sharp the Hutu–Tutsi divide was before colonial rule, and how much blame belongs to colonial policy versus postcolonial politics and the 1994 leaders, is debated.