State Expansion (1750–1900) - AP World History

SECTION 1

Historical Context & Motivation

The period between 1750 and 1900 witnessed an unprecedented transformation in the scale, reach, and capacity of states across the globe. Before the onset of industrialization, even the most powerful empires governed vast territories through decentralized networks of local elites, religious authorities, and tributary systems that left considerable autonomy at the periphery. The Industrial Revolution, originating in Britain and spreading to continental Europe, North America, and beyond, fundamentally altered this dynamic by providing states with new technologies—railroads, telegraphs, steamships, and mass-produced weaponry—that enabled centralized control on an entirely new scale.

State expansion during this era took multiple forms: the consolidation of national governments in Europe through political unification movements, the territorial aggrandizement of imperial powers across Africa and Asia through the New Imperialism, the growth of bureaucratic and administrative apparatuses to manage increasingly complex economies, and the assertion of state authority over populations through public education, conscription, and legal standardization. In every case, the engines of industrialization—capital accumulation, technological innovation, and the demand for raw materials and markets—drove the expansion of state power both inward, toward deeper penetration of society, and outward, toward the domination of new territories.

1757 • Battle of Plassey

The British East India Company defeats the Nawab of Bengal, inaugurating a new model of European commercial-territorial expansion that would eventually bring the entire Indian subcontinent under British control.

1848 • Revolutions and Nation-Building

A wave of liberal-nationalist revolutions sweeps Europe, accelerating efforts to consolidate ethnically defined nation-states and replace absolutist dynastic regimes with centralized bureaucratic governments.

1861–1871 • Unification of Italy and Germany

Piedmont-Sardinia and Prussia use diplomacy, warfare, and railroad logistics to forge unified nation-states, demonstrating how industrial-era military capacity could forge new political entities.

1884–1885 • Berlin Conference

European powers partition Africa with little regard for indigenous political boundaries, epitomizing the Scramble for Africa and the capacity of industrialized states to project power globally.

1898 • Spanish-American War

The United States acquires overseas colonies including the Philippines, Guam, and Puerto Rico, signaling the arrival of a new industrial power on the imperial stage.

This timeline reveals a critical question that sits at the heart of AP World History's treatment of the era: how did the material transformations wrought by industrialization translate into new forms of political power, and what were the consequences for both the societies that industrialized and those that became targets of imperial expansion? Understanding state expansion in this period requires us to trace the connections between technological change, economic competition, ideological motivation, and institutional growth.

SECTION 2

Core Principles of State Expansion

State expansion between 1750 and 1900 was not a monolithic process but rather a convergence of distinct yet interconnected dynamics. Historians identify several foundational principles that explain why states grew in scale, complexity, and ambition during this era. These principles span military technology, administrative innovation, economic imperatives, and ideological justifications, and they operated simultaneously in both industrializing nations and the empires they constructed overseas.

Technological Enablement

Railroads, steamships, and the telegraph allowed states to project power over vast distances, communicate with remote territories in real time, and mobilize armies with unprecedented speed. Technologies like the Maxim gun created decisive military asymmetries between industrialized and non-industrialized societies.

Bureaucratic Centralization

States expanded their administrative capacity by creating professional civil services, standardized legal codes, public education systems, and census-taking operations. These tools allowed governments to monitor, tax, and conscript their populations far more effectively than ancien régime systems.

Economic Imperatives

Industrialized economies required access to raw materials—rubber, cotton, palm oil, minerals—and captive markets for manufactured goods. The logic of economic imperialism drove states to annex territories that could supply these needs and absorb surplus production.

Ideological Justification

Nationalism, Social Darwinism, and civilizing mission rhetoric provided moral frameworks for expansion. European powers and the United States framed imperial conquest as a duty to uplift 'lesser' peoples, masking economic exploitation behind humanitarian or religious language.

Diplomatic Competition

The balance of power system in Europe meant that territorial gains by one state prompted rivals to seek compensating advantages. This competitive dynamic accelerated the scramble for colonies and drove arms races that further strengthened state military capacity.

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KEY TAKEAWAY

Think of state expansion during this era as a feedback loop similar to a corporation reinvesting its profits to acquire competitors. Industrialization generated wealth, which funded military technology and bureaucratic infrastructure, which in turn enabled territorial conquest, which provided new resources and markets, which fueled further industrialization. Each cycle increased the state's reach and the gap between industrialized and non-industrialized societies.

SECTION 3

Visual Explanation: The Feedback Loop of State Expansion

This diagram illustrates the self-reinforcing cycle that drove state expansion. Industrialization enabled military power, which facilitated territorial conquest, which secured raw materials and markets, which financed bureaucratic growth, which in turn reinforced industrial capacity. Ideological justifications permeated every stage of the loop, providing moral cover for expansion.

The cyclical nature of this process is essential for understanding why state expansion accelerated so dramatically after 1850. Once a state entered the loop—investing in industrial infrastructure that generated military advantages—the returns compounded. Britain's early industrialization, for example, gave it a head start in naval technology that secured its dominance of global trade routes, which funneled colonial wealth back to fund further industrial development. Rival states like France, Germany, and eventually Japan recognized that falling behind in this cycle meant strategic vulnerability, prompting aggressive programs of modernization and territorial acquisition.

SECTION 4

Mechanisms of Expansion: Domestic and Imperial

Domestic State-Building

Within their own borders, industrializing states pursued an aggressive program of internal consolidation that deepened government authority over everyday life. Compulsory public education systems, such as those established in Prussia after 1763 and in France following the Jules Ferry Laws of the 1880s, served a dual purpose: they created a literate workforce suited to industrial employment while simultaneously inculcating national identity, standardized language use, and civic loyalty. Military conscription—exemplified by the Prussian model that became standard across continental Europe—transformed peasant populations into disciplined national armies, binding citizens to the state through service obligations and shared martial culture.

The expansion of state bureaucracy was inseparable from the rise of statistical governance. Regular census-taking, vital statistics registries, and cadastral surveys gave states detailed knowledge of their populations—births, deaths, property holdings, occupations—enabling more efficient taxation, military recruitment, and social engineering. The development of professional civil services, exemplified by the reform of the British civil service after the Northcote-Trevelyan Report of 1854, replaced patronage networks with meritocratic recruitment, increasing administrative competence and the impersonal reach of state power.

Imperial State-Building

Overseas, state expansion operated through a range of institutional forms. Direct rule, as practiced by France in Algeria and Indochina, imposed metropolitan administrative structures on colonized territories, dispatching French officials to govern and suppressing indigenous political institutions. Indirect rule, as practiced by Britain in much of Africa and South Asia, co-opted local leaders as agents of colonial authority, maintaining a veneer of indigenous governance while extracting resources and enforcing imperial policy. Settler colonialism, as in Australia, South Africa, and the American West, involved the physical displacement of indigenous populations and the transplantation of European legal, economic, and social systems onto colonized lands.

This diagram compares three models of imperial governance. Under direct rule, metropolitan officials governed colonies personally. Under indirect rule, colonial powers co-opted indigenous leaders. Under settler colonialism, European populations physically displaced indigenous peoples and transplanted their own institutions.

SECTION 5

Regional Case Studies of State Expansion

The dynamics of state expansion manifested differently across world regions, depending on local conditions, the timing and character of industrialization, and the degree of resistance or accommodation by existing societies. Examining specific cases illuminates both the common patterns and the important variations within this global phenomenon.

State / Empire	Form of Expansion	Key Methods	Consequences
British Empire	Maritime imperialism; indirect and direct rule across Africa, Asia, Pacific	Naval supremacy, free-trade imperialism, chartered companies (e.g., British East India Company), railroad construction in India	De-industrialization of Indian textile sector; creation of cash-crop export economies; emergence of English-educated colonial elites
United States	Continental expansion (Manifest Destiny); overseas empire after 1898	Transcontinental railroad, Indian Removal and reservation system, Mexican-American War, Spanish-American War	Dispossession and near-destruction of Native American societies; annexation of Philippines, Hawaii, Puerto Rico
Meiji Japan	Defensive modernization followed by imperial expansion in East Asia	Meiji Restoration (1868), rapid industrialization, conscript army, Sino-Japanese War (1894–1895)	Acquisition of Taiwan and influence over Korea; Japan emerges as first non-Western industrial-imperial power
Russian Empire	Continental expansion into Central Asia, Siberia, and the Caucasus	Trans-Siberian Railroad, Russification policies, military campaigns against Caucasian and Central Asian peoples	Incorporation of diverse ethnic groups into autocratic state; cotton monocultures in Central Asia; tensions that would fuel later nationalist movements
Germany (post-1871)	National unification followed by late entry into Scramble for Africa	Blood and Iron diplomacy, rapid industrial growth, colonial acquisitions in Namibia, Tanzania, Cameroon, Togo	Herero and Nama genocide in Namibia; naval arms race with Britain contributing to World War I origins

Comparative State Expansion, 1750–1900

Several patterns emerge from these cases. First, the timing of industrialization shaped the form of expansion: early industrializers like Britain built vast maritime empires, while latecomers like Germany and Japan pursued more aggressive, compensatory strategies. Second, transportation infrastructure—above all railroads—was both a tool and a symbol of state power, physically binding diverse territories into centralized political units. Third, expansion consistently produced devastating consequences for colonized and indigenous peoples, including economic extraction, cultural disruption, environmental transformation, and in some cases outright genocide.

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Non-Western Responses

Not all non-Western states were passive victims of European expansion. The Ottoman Tanzimat reforms (1839–1876), the Qing Self-Strengthening Movement (1861–1895), and the Meiji Restoration in Japan represent deliberate attempts by existing states to adopt Western industrial and military technologies in order to resist domination. The success of these efforts varied dramatically: Japan succeeded in becoming an imperial power itself, while the Qing and Ottoman empires ultimately collapsed under the combined pressures of internal dissent and external encroachment.

SECTION 6

Worked Example: Analyzing a Document on Imperialism

A common task on the AP World History exam asks you to analyze a primary source related to state expansion and connect it to broader historical developments. Below is a step-by-step analysis of a hypothetical document prompt, demonstrating the kind of reasoning the exam rewards.

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DOCUMENT PROMPT

"The mission of France is to carry everywhere its language, its customs, its flag, its arms, and its genius. We must extend our influence over the peoples who still call upon our aid or who implore our protection... It is our duty, as the most civilized nation, to bring to less fortunate peoples the benefits of order, science, and progress." — French colonial administrator, address to the Chamber of Deputies, c. 1880

Analyzing the Document Using HIPPO

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Step 1 — Historical Context

This speech was delivered during the height of the New Imperialism (c. 1870–1914), when European powers competed aggressively for colonies in Africa and Asia. France had recently been defeated in the Franco-Prussian War (1870–1871), losing Alsace-Lorraine to Germany. Colonial expansion was partly driven by a desire to compensate for this humiliation and restore French prestige on the world stage.

Context: Post-1870 imperial competition + French nationalism after Franco-Prussian War defeat
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Step 2 — Intended Audience

The audience is the French Chamber of Deputies—elected legislators who controlled colonial appropriations. The speaker is attempting to persuade them to authorize and fund further colonial ventures by framing imperialism as both a national duty and a moral obligation.

Audience: French legislators deciding on colonial budgets
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Step 3 — Point of View & Purpose

The speaker is a colonial administrator with a vested interest in continued expansion. His purpose is to secure political support for imperialism by invoking the civilizing mission (mission civilisatrice)—the ideological claim that French culture, law, and technology were inherently superior and that colonized peoples would benefit from French rule. This rhetoric obscures the economic motives (access to raw materials, markets, and cheap labor) that also drove expansion.

POV: Colonial administrator using civilizing mission rhetoric to mask economic motives
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Step 4 — Historical Significance

This document exemplifies a broader pattern in which industrialized states used ideological justifications—including Social Darwinism, racial hierarchy, and religious mission—to legitimize the conquest and subjugation of non-European peoples. It also illustrates the connection between domestic nationalism and overseas imperialism, since the speaker links French greatness to the extension of colonial power.

Significance: Reveals intersection of ideology, nationalism, and imperial state expansion
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Step 5 — Outside Evidence & Complexity

A strong response would introduce outside evidence such as the Berlin Conference of 1884–1885, which formalized European partition of Africa without African consent, or contrast the French civilizing mission with British notions of the 'White Man's Burden.' For complexity, one might note that not all French citizens supported imperialism—socialists like Jean Jaurès opposed it—or that colonized peoples actively resisted, as in the Algerian resistance led by Abd el-Kader.

Complexity: Internal dissent + colonized resistance challenge simplistic narratives

SECTION 7

Resistance, Limitations, and Consequences

State expansion was never uncontested. Across the globe, colonized and marginalized peoples mounted resistance that ranged from armed rebellion to cultural persistence, forcing expanding states to adapt, compromise, or escalate violence. Understanding these dynamics is essential for avoiding a one-dimensional narrative that portrays expansion as an irresistible force and colonized peoples as passive recipients of European power.

Dimension	Strengths / Drivers of Expansion	Limitations / Sources of Resistance
Military	Industrial weapons (repeating rifles, machine guns, artillery) gave European forces decisive advantages in pitched battles; naval power secured supply lines	Guerrilla warfare (e.g., Zulu resistance, Maori Wars, Ethiopian victory at Adwa in 1896), tropical disease, extended supply lines in remote territories
Economic	Colonies provided raw materials and captive markets; infrastructure investment (railroads, ports) facilitated extraction	Colonial economies were often costly to administer; resistance to forced labor and cash-crop regimes (e.g., Maji Maji Rebellion in German East Africa)
Ideological	Nationalism, Social Darwinism, and civilizing mission rhetoric mobilized domestic support and legitimized conquest	Anti-imperial movements drew on liberal, socialist, and religious traditions to challenge the moral basis of colonialism; domestic critics in imperial states (e.g., anti-slavery movements, socialist opposition)
Administrative	Professional bureaucracies, censuses, legal codes, and education systems deepened state control over populations	Colonial education inadvertently created literate indigenous elites who would later lead nationalist movements (e.g., Indian National Congress, founded 1885)

Drivers and Constraints on State Expansion

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KEY TAKEAWAY

State expansion produced what historians call unintended consequences—much like introducing a new variable into a complex system. Colonial education systems, built to train compliant administrators, instead cultivated the very nationalist leaders who would eventually dismantle empires. Railroads built for resource extraction later became arteries of anti-colonial mobilization. The tools of expansion contained, paradoxically, the seeds of decolonization.

SECTION 8

Connections to the 20th Century and Beyond

The patterns of state expansion established between 1750 and 1900 had profound implications for the twentieth century. The competitive imperialism of European powers, fueled by industrial capacity and nationalist fervor, created a web of colonial rivalries, arms races, and alliance systems that directly contributed to the outbreak of World War I in 1914. The administrative and economic structures established during the imperial era shaped the political geography of decolonization after 1945, often leaving newly independent states with arbitrary borders, extractive economic systems, and institutional legacies that continue to influence global politics.

Theme	1750–1900: State Expansion	20th Century: Consequences & Transformation
Imperial rivalry	European powers compete for colonies in Africa and Asia; arms races intensify	Rivalries erupt into World War I; Versailles settlement redistributes colonies as mandates
Nationalism	Nationalism drives both European unification and imperial expansion	Anti-colonial nationalism fuels independence movements across Asia, Africa, and the Middle East
State capacity	States expand bureaucratic, military, and surveillance capacity through industrialization	Totalitarian states of the 20th century (USSR, Nazi Germany) represent extreme extensions of state power enabled by industrial-era tools
Global inequality	Colonial extraction and de-industrialization create structural economic disparities	Post-colonial development challenges, dependency theory, and debates over neocolonialism

Continuities and Changes from the Imperial Era to the 20th Century

For the AP exam, recognizing these continuities and changes across periods is essential. The College Board frequently tests your ability to trace causal chains that extend beyond a single unit, connecting the industrialization-driven expansion of the nineteenth century to the global conflicts, decolonization movements, and persistent inequalities of the twentieth century. Think of state expansion not as a self-contained phenomenon but as a critical node in a longer chain of causation that links the Age of Revolutions (1750–1900) to the era of Global Conflict (1900–present).

SECTION 9

Practice Problems

Question 1: CONCEPTUAL

Which of the following best describes how industrialization enabled state expansion during the period 1750–1900?

A. Industrialization allowed states to replace standing armies with militia forces, reducing the cost of territorial control.
B. Industrialization provided states with advanced transportation, communication, and military technologies that enabled them to project power over greater distances and consolidate control over larger territories.
C. Industrialization eliminated the need for colonial administrations by making territories self-governing through economic integration alone.
D. Industrialization weakened European states internally, forcing them to seek external expansion to compensate for domestic instability.

Show answer (B)

B is correct. The core relationship between industrialization and state expansion rested on technologies like railroads, steamships, telegraphs, and mass-produced weapons that allowed states to project authority over vast distances. A is incorrect because industrialization actually increased the size and professionalization of armies through conscription, not reduced them. C is incorrect because colonial territories required extensive bureaucratic administrations, not less governance. D is incorrect because, while domestic pressures sometimes motivated expansion, industrialization generally strengthened European states internally through economic growth and institutional development.

Question 2: BASIC APPLICATION

The Meiji Restoration of 1868 most directly illustrates which of the following dynamics of state expansion?

A. A non-Western state deliberately adopted industrial and military technologies to resist Western domination and eventually become an imperial power itself.
B. A colonized society successfully expelled European occupiers through armed resistance rooted in traditional military techniques.
C. A European power established indirect rule over Japan by co-opting the Tokugawa shogunate as a puppet government.
D. A religious reform movement that rejected Western influence and sought to return Japan to pre-contact cultural traditions.

Show answer (A)

A is correct. The Meiji Restoration exemplifies defensive modernization—Japan's leaders deliberately adopted Western industrial technology, military organization, and bureaucratic structures to strengthen the state against the threat of colonization, and by the 1890s Japan had become an imperial power with victories over China (1895) and later Russia (1905). B is incorrect because Japan was never colonized and the Meiji reformers embraced, rather than rejected, Western military techniques. C is incorrect because no European power established indirect rule over Japan; the Tokugawa shogunate was overthrown by Japanese reformers, not foreign powers. D is incorrect because the Meiji Restoration was characterized by rapid adoption of Western practices, not rejection of foreign influence.

Question 3: INTERMEDIATE

3 pts

Answer parts (a), (b), and (c). (a) Identify ONE technological development that facilitated state expansion between 1750 and 1900. (b) Explain how that technology enabled a specific state to expand its territorial control. (c) Identify ONE form of resistance that colonized or marginalized peoples used to challenge state expansion during this period, and explain why that resistance was or was not effective.

Show answer

Rubric (3 points): Part (a) — 1 point: Identifies a relevant technology (e.g., the railroad, steamship, telegraph, Maxim gun, quinine for malaria prevention, breech-loading rifles). Example response: 'The railroad was a key technological development that facilitated state expansion.' Part (b) — 1 point: Explains a specific connection between the named technology and territorial expansion by a particular state. Example: 'The British used railroads in India to transport troops rapidly to suppress rebellions, move raw materials like cotton to port cities for export, and physically integrate diverse regions into a centrally administered colonial state. The railroad network gave the British Raj effective control over the subcontinent in a way that would have been impossible using pre-industrial transportation.' Part (c) — 1 point: Identifies a form of resistance AND explains its effectiveness or lack thereof. Example: 'The Ethiopian military, under Emperor Menelik II, used a combination of modern weapons purchased from European rivals and strategic terrain advantages to defeat the Italian army at the Battle of Adwa in 1896. This resistance was effective because Ethiopia maintained its sovereignty and was one of only two African states never colonized, demonstrating that industrial military technology could be adopted by non-Western societies to resist imperial expansion.'

Question 4: APPLIED

4 pts

Using the document below and your knowledge of world history, answer the question that follows. Document: 'We do not go to the barbarous regions of the globe in order to communicate our perfect civilization. We go to seize the wealth that is in the lands of those who are weaker than us. It is pure and simple robbery.' — French socialist politician, speech to the French National Assembly, 1885. To what extent did economic motivations drive European imperial expansion in the period 1750–1900? In your response, analyze the document above, incorporate at least ONE additional piece of historical evidence, and demonstrate a complex understanding of the issue.

Show answer

Rubric (4 points): Point 1 — Thesis (1 point): Presents a historically defensible thesis that directly addresses the extent to which economic motivations drove expansion. Example: 'While economic motivations—particularly the demand for raw materials and new markets generated by industrialization—were central to European imperial expansion, they operated alongside and were intertwined with strategic, nationalist, and ideological factors, making it impossible to isolate economics as the sole driver.' Point 2 — Document Analysis (1 point): Accurately describes the content of the document AND analyzes its significance for the argument. The document is a critique by a socialist politician who views imperialism as fundamentally economic exploitation disguised by civilizing mission rhetoric. Analysis should note the speaker's socialist perspective, which predisposes him toward economic explanations, and his purpose of opposing colonial appropriations in the legislature. Point 3 — Outside Evidence (1 point): Incorporates at least one additional piece of specific historical evidence. Examples: the role of the British East India Company in exploiting Indian cotton and opium markets; King Leopold II's exploitation of rubber in the Congo Free State; the Berlin Conference's explicit discussion of trade access as the basis for colonial claims. Point 4 — Complexity (1 point): Demonstrates a complex understanding by doing one of the following: (a) explaining both the strengths and limitations of the economic interpretation—e.g., noting that some colonies were net financial losses but were acquired for strategic or prestige reasons; (b) connecting the argument to broader processes such as the role of Social Darwinism or nationalism; (c) qualifying the argument by noting that economic motivations manifested differently across regions and time periods.

Question 5: CRITICAL THINKING

4 pts

Evaluate the extent to which state expansion between 1750 and 1900 was primarily driven by industrialization rather than by pre-existing patterns of imperial competition and territorial ambition. Develop an argument that evaluates the extent of industrialization's role, using specific historical evidence from at least TWO world regions.

Show answer

Rubric (4 points): Point 1 — Thesis (1 point): Presents a historically defensible thesis with a clear evaluative claim. Example: 'While imperial ambitions predated industrialization—as demonstrated by early modern European colonialism in the Americas—the scale, speed, and institutional depth of state expansion between 1750 and 1900 were fundamentally transformed by industrial technology, making industrialization the primary driver of expansion in this specific period even as it built upon older patterns of rivalry.' Point 2 — Contextualization (1 point): Situates the argument within the broader historical context of the period. Example: Before 1750, European empires had already established colonial footholds in the Americas and maritime Asia. The question is whether industrialization merely accelerated existing trends or created qualitatively new forms of expansion. The answer requires consideration of pre-industrial empires (Spanish, Portuguese, Dutch) alongside the dramatically expanded scope of 19th-century imperialism. Point 3 — Evidence (1 point): Uses specific historical evidence from at least two world regions to support the argument. Strong examples: (1) In Africa, the Scramble for Africa after 1880 would have been logistically impossible without steamships, quinine, railroads, and industrial weapons—technologies unavailable to earlier European empires. (2) In East Asia, Meiji Japan's rapid transformation from a feudal society to an industrial-military power that defeated China (1894–1895) demonstrates that industrialization was the decisive variable enabling expansion, since Japan's pre-industrial ambitions had been confined to a much smaller scale. (3) In North America, the United States used the transcontinental railroad to consolidate control over continental territory at a pace that pre-industrial transportation could never have sustained. Point 4 — Complexity (1 point): Demonstrates nuanced understanding through one or more of the following: (a) Acknowledging continuity with pre-industrial patterns—e.g., the Russian Empire expanded overland into Siberia and Central Asia using methods that blended pre-industrial military coercion with industrial-era railroad construction. (b) Noting that non-economic motivations like nationalism, religious mission, and strategic competition were themselves intensified by industrialization but were not reducible to it. (c) Analyzing how the timing of industrialization created hierarchies among expanding states—early industrializers like Britain versus late industrializers like Germany pursued different strategies of expansion. (d) Exploring how resistance to expansion (e.g., Ethiopian victory at Adwa) depended partly on access to industrial weapons, further demonstrating industrialization's centrality.

SUMMARY

Summary: State Expansion (1750–1900)

Summary

Between 1750 and 1900, industrialization transformed the capacity of states to project power, manage populations, and acquire territory on a global scale. The feedback loop connecting industrial production, military technology, territorial conquest, resource extraction, and bureaucratic centralization drove the expansion of European empires across Africa and Asia, the continental consolidation of the United States and Russia, and the emergence of non-Western imperial powers like Meiji Japan. Ideological justifications—including nationalism, Social Darwinism, and the civilizing mission—provided the moral framework for expansion while masking its fundamentally economic and strategic logic.

State expansion took multiple forms: direct rule, indirect rule, and settler colonialism each imposed different structures on colonized societies, but all served the extractive interests of industrialized states. Critically, expansion was never uncontested: armed resistance (as at the Battle of Adwa), defensive modernization (as in the Meiji Restoration and the Ottoman Tanzimat), and the emergence of anti-colonial nationalism all challenged and complicated the trajectory of state expansion. The legacies of this era—arbitrary borders, extractive economic structures, persistent global inequalities, and the competitive great-power dynamics that produced World War I—remain central to understanding the modern world.