AP World History: Modern
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🌍ap world history: modern review

6.8 Causation in the Imperial Age

Verified for the 2025 AP World History: Modern examCitation:

Imperialism between 1750 and 1900 transformed global political boundaries, labor systems, and economic relationships. Driven by industrial capitalism and ideas of cultural superiority, European and American powers expanded overseas empires across Africa, Asia, and the Pacific. This unit focuses on cause-and-effect relationships, with an emphasis on continuities and changes in global power structures, migration, and the global economy.

Introduction

Imperial expansion was caused by a complex mix of motivations: economic ambition, military strategy, missionary zeal, nationalism, and racism. Industrialization increased the demand for raw materials and markets, prompting powerful states to control distant lands. Colonized societies experienced profound disruption, as local economies were redirected toward imperial needs and local cultures were often repressed.

Imperialism’s effects were not uniform. In some cases, colonized peoples resisted directly through rebellion. In others, migration patterns shifted, labor systems evolved, and global inequalities widened. Imperialism also sparked revolutions and the rise of new nation-states, altering the global order into the 20th century.


Standard of Living and Global Inequality

While the Industrial Revolution raised standards of living for many in Europe and North America, these improvements were unevenly distributed across the globe. Colonized regions often experienced a decline in quality of life as their economies were restructured to serve imperial powers.

Standard of Living: Causes and Effects

RegionEffects of Industrialization/Imperialism
Western EuropeIncreased wages, consumer goods, and urban infrastructure
Colonized AfricaForced labor, resource extraction, stagnation of local economies
IndiaDeindustrialization (esp. textiles), famine, railroads built for export
ChinaEconomic disruption due to imperial spheres of influence

Continuity: Global inequality between imperial powers and colonies continued to grow, setting the stage for future independence movements and economic dependency.


Expansion Overseas and the Growth of Empire

Industrialization fueled the desire for raw materials, markets, and strategic control. Technological innovations—like steamships, railroads, and telegraphs—made long-distance conquest and administration possible.

Key Causes of Overseas Expansion

  • Economic Interests: Secure access to rubber, cotton, palm oil, sugar, and minerals.
  • Strategic Competition: Establish naval bases and refueling stations along key routes.
  • Missionary Zeal: Convert colonized peoples to Christianity and impose Western education.
  • Racial Ideologies: Social Darwinism and white supremacy were used to justify conquest.
  • Nationalism: Empires brought prestige; expansion became a matter of national pride.

Change: By 1900, European empires dominated most of Africa and Asia, whereas in 1750, many regions remained independent.


Revolution and Rebellion

Imperialism and Enlightenment ideals inspired revolutions around the world. These movements challenged monarchies, colonial rule, and social hierarchies.

Major Revolutionary Movements and Their Causes

RegionEventCauseEffect
British North AmericaAmerican RevolutionTaxation without representationU.S. independence; spread of Enlightenment ideals
FranceFrench RevolutionEconomic hardship, inequality, Enlightenment ideasEnd of monarchy; rise of nationalism
South AmericaBolívar’s Independence WarsColonial inequality, Enlightenment, Napoleonic WarsIndependence of Venezuela, Colombia, Peru, Bolivia
Brazil (Portuguese)Peaceful separation (1822)Portuguese royal family relocationCreation of Brazilian Empire
IndiaSepoy Rebellion (1857)Religious tensions, British cultural impositionEnd of East India Company; start of British Raj
ChinaBoxer Rebellion (1899–1901)Anti-foreign, anti-Christian sentimentSuppression of rebellion, further Qing weakening

Continuity: Despite revolutions, many new nation-states retained elite control and unequal social systems inherited from colonial regimes.


Migration and Discrimination

Imperialism and industrial capitalism triggered massive global migration. While some moved voluntarily in search of work, others were forcibly relocated through slavery, indentured servitude, or penal labor. These movements reshaped demographics and sparked intense social reactions in host societies.

Causes of Migration

  • Labor Demand: Workers needed in plantations, railroads, and mines.
  • Famine and Poverty: Irish Potato Famine, rural overpopulation in China and India.
  • Political Unrest: Revolutions and wars pushed people to migrate.
  • Indentured Labor Systems: Contracted workers from India and China to the Caribbean, Southeast Asia, and Africa.

Effects of Migration and Discrimination

EffectExample
Ethnic EnclavesChinatowns in San Francisco; Indian merchants in East Africa
Discrimination and ExclusionChinese Exclusion Act (1882), White Australia Policy
Cultural BlendingCreole languages, mixed cuisines, fusion music and traditions
Labor Competition and TensionIrish laborers vs. American workers; attacks on Asian communities
Increased Racism and XenophobiaScientific racism, eugenics, racial hierarchies justified in colonies

Change: Migration expanded dramatically in scale and diversity from the 18th to 19th centuries due to faster transport and imperial integration.


Conclusion

Imperialism in the period 1750–1900 had far-reaching effects: it shaped migration patterns, ignited revolutions, widened global inequality, and redrew political borders. Industrialization fueled the economic and technological power of imperial states, while colonized peoples resisted in various ways—from open revolt to subtle cultural survival. Understanding these causes, effects, continuities, and changes is key to grasping how modern global systems were formed.

🎥Watch: WHAP - Unit 6 Review: Causation in an Age of Imperialism and Global Migrations

Key Terms to Review (58)

Agrarian Economy: An agrarian economy is a type of economic system primarily based on agriculture and farming as the main source of livelihood and wealth. This kind of economy emphasizes the cultivation of crops and the raising of livestock, with most people engaged in agricultural activities. The dynamics of an agrarian economy are closely tied to land ownership, labor practices, and agricultural innovations, influencing social structures and trade patterns.
American Revolution: The American Revolution was a colonial revolt against British rule that lasted from 1775 to 1783, resulting in the independence of the thirteen American colonies and the formation of the United States. This revolution was heavily influenced by Enlightenment ideas, leading to the establishment of democratic principles and the questioning of traditional authority.
Boxer Rebellion in China: The Boxer Rebellion was an anti-foreign, anti-Christian uprising that occurred in China between 1899 and 1901, led by a secret society known as the Boxers. This movement emerged in response to foreign imperialism and the socio-economic hardships faced by many Chinese, fueled by resentment towards Western powers and missionaries. The rebellion reflects the larger patterns of resistance against imperialist control during the Imperial Age.
British Raj: The British Raj refers to the period of British rule in India from 1858 to 1947, marked by the direct governance of India by the British Crown after the Indian Rebellion of 1857. This era significantly transformed Indian society, economy, and politics, while also showcasing the complexities and consequences of imperialism during the Imperial Age.
British East India Company's Army: The British East India Company's Army was a military force established by the British East India Company in the 18th and 19th centuries to secure its interests in India. This army played a crucial role in both the expansion of British control over Indian territories and the enforcement of company rule, leading to significant political and social changes in the region during the imperial age.
Colonization: Colonization is the process by which a country establishes control over a foreign territory and its people, often leading to the settlement of its own population and the exploitation of local resources. This practice significantly shaped global interactions and economies, resulting in profound cultural exchanges, changes in social structures, and resistance movements from indigenous populations.
Cost Decrease: Cost decrease refers to the reduction in the expenses associated with production, distribution, or provision of goods and services. This concept is crucial during the imperial age as it relates to advancements in technology, transportation, and communication, which all contributed to making goods more affordable and accessible, thus influencing trade patterns and economic relationships between empires and their colonies.
Culture Development: Culture development refers to the evolution and transformation of cultural practices, beliefs, and expressions over time, influenced by various social, political, and economic factors. This concept connects to the ways in which imperial expansion and colonialism shaped and redefined cultures across different regions, as diverse societies interacted, assimilated, or resisted external influences during the imperial age.
Development New Industries: The development of new industries refers to the emergence and growth of different sectors within an economy that often leads to innovation, technological advancements, and changes in social and economic structures. This transformation can be seen during the Imperial Age, where industrialization not only fueled economic growth but also influenced imperial policies, global trade, and social relations between colonizers and colonized nations.
Disease Spread: Disease spread refers to the transmission of infectious diseases among populations, particularly in the context of global interactions and movements during the Imperial Age. This phenomenon was significantly influenced by trade, colonization, and the exchange of goods and people, leading to profound impacts on demographics, economies, and societies. The movement of diseases often accompanied explorers, traders, and colonizers, reshaping health landscapes across continents and contributing to significant mortality rates in vulnerable populations.
Displacement and Genocide of Indigenous Peoples: Displacement and genocide of Indigenous peoples refer to the forced removal and systematic extermination of native populations, primarily driven by imperial expansion and colonial policies. This phenomenon is closely tied to the violent encounters between European settlers and Indigenous communities, leading to devastating consequences for native cultures, social structures, and populations.
Disruption of Traditional Societies: Disruption of Traditional Societies refers to the significant changes and upheavals that traditional social structures and cultural norms experienced, often due to external influences like imperial expansion, industrialization, and globalization. This term highlights how colonization, economic transformation, and technological advancements challenged existing ways of life, leading to social dislocation and conflict as societies struggled to adapt to new realities.
Discrimination and Racism: Discrimination refers to the unjust treatment of individuals based on characteristics such as race, gender, age, or religion, while racism specifically involves prejudice, discrimination, or antagonism directed against individuals of different races based on the belief that one’s own race is superior. In the context of the Imperial Age, these concepts were used to justify colonial practices and the subjugation of various peoples across the globe.
Economic Opportunities Migration: Economic Opportunities Migration refers to the movement of people from one place to another in search of better economic prospects, such as jobs, higher wages, or improved living conditions. This type of migration is often driven by the disparities in economic development between regions and can lead to significant demographic and cultural changes in both the places people leave and those they move to.
Economic Growth: Economic growth refers to the increase in the production of goods and services in an economy over time, typically measured by the rise in real Gross Domestic Product (GDP). This concept is closely linked to trade, technological advancements, and imperial expansion, as these elements often drive the demand for goods and services and facilitate the flow of resources.
Enfield Rifle: The Enfield Rifle refers to a series of bolt-action rifles developed by the British military, most notably the .577/.450 caliber Martini-Henry and the later .303 caliber Lee-Enfield. This weapon became significant during the Imperial Age due to its role in British military expansion and colonial conflicts, highlighting technological advancements in weaponry and their impacts on warfare strategies.
Enslaved Africans: Enslaved Africans were individuals forcibly taken from their homelands and subjected to a life of slavery, primarily during the transatlantic slave trade from the 16th to the 19th centuries. This system of forced labor became a cornerstone of colonial economies, particularly in the Americas, where enslaved people were exploited for agricultural production and other labor-intensive industries.
Estates-General: The Estates-General was a legislative assembly in France representing the three estates of the realm: the clergy, the nobility, and the common people. This assembly was crucial in the context of political and social tensions leading up to the French Revolution, as it provided a platform for various social classes to voice their grievances and influence governmental policies.
Expansion Overseas: Expansion overseas refers to the process by which European powers extended their influence and control beyond their borders to establish colonies and trade networks across the globe, particularly during the Age of Imperialism. This expansion was driven by economic interests, competition among nations, and a belief in the superiority of European culture and civilization, leading to significant political, social, and economic changes worldwide.
Exploitation of Indigenous Peoples: The exploitation of Indigenous Peoples refers to the systematic use and abuse of the resources, labor, and cultures of native populations by colonial powers and later capitalist entities. This process was often justified through ideologies of superiority and manifest destiny, resulting in significant social, economic, and cultural disruptions for Indigenous communities during the imperial age.
Formation of New Ethnic Enclaves: The formation of new ethnic enclaves refers to the establishment of distinct communities where individuals of similar ethnic backgrounds live closely together, often resulting from migration patterns, economic opportunities, or social networks. This phenomenon can significantly influence cultural interactions and relationships in areas affected by imperial expansion, creating unique socio-economic dynamics as diverse groups coalesce in specific regions.
Forced Labor: Forced labor refers to work that people are compelled to perform against their will, often under threat of punishment or coercion. This practice has been utilized throughout history, particularly during imperial expansion, as colonizers sought to exploit local populations for economic gain and resource extraction, reflecting underlying power dynamics and rationales for domination.
France: France is a country in Western Europe known for its rich history, cultural influence, and significant role in global events. Throughout history, France has been a major player in political, social, and economic changes, impacting areas such as industrialization, imperialism, world wars, and decolonization.
French Revolution: The French Revolution was a period of radical social and political upheaval in France from 1789 to 1799, which profoundly affected French and global history. It marked the end of absolute monarchy, the rise of democratic ideals, and the emergence of nationalism, influencing revolutions around the world.
Global Economy: The global economy refers to the interconnected economic activities and markets that span across nations, involving the exchange of goods, services, labor, and capital. This concept emphasizes how economic conditions in one country can influence others, highlighting the significance of trade networks, financial systems, and multinational corporations in shaping economic relationships worldwide.
Goods Availability Increase: Goods Availability Increase refers to the rise in the accessibility and distribution of products and resources during the imperial age, facilitated by advancements in trade networks and colonial exploitation. This increase allowed empires to bolster their economies, meet consumer demands, and establish greater control over global markets, leading to profound socio-economic changes across regions and cultures.
Great Britain: Great Britain is an island nation located off the northwestern coast of mainland Europe, consisting of England, Scotland, and Wales. Its historical influence shaped global political, economic, and cultural landscapes, particularly during periods of nationalism, imperialism, and industrialization.
Imperialism: Imperialism is the policy or practice of extending a country's power and influence through diplomacy or military force. It often involves the domination of one nation over another, which can lead to the exploitation of resources and people, shaping global politics, economics, and cultures in significant ways.
Imposition of Western Culture: The imposition of Western culture refers to the process by which Western nations and societies, particularly during the imperial age, spread their cultural values, beliefs, and practices to other regions of the world. This often involved colonization, where Western powers exerted control over non-Western societies, leading to significant social, political, and economic changes.
Indian Rebellion of 1857: The Indian Rebellion of 1857, also known as the Sepoy Mutiny, was a significant uprising against British rule in India that marked a turning point in colonial history. It was fueled by a mix of resentment towards British policies, cultural insensitivity, and economic exploitation, leading to widespread violence and the temporary establishment of a self-proclaimed Mughal Empire.
Industrialization: Industrialization refers to the process of transforming economies from primarily agricultural to industrial, marked by the growth of factories, mass production, and advancements in technology. This transformation significantly influenced social, economic, and political structures worldwide, especially during the 18th and 19th centuries.
Industrial Revolution: The Industrial Revolution was a transformative period that began in the late 18th century, marked by the transition from agrarian economies to industrialized ones, primarily driven by technological innovations and changes in production methods. This shift had profound impacts on social structures, economies, and the global landscape, influencing responses to industrialization, societal changes, and the expansion of imperialism.
Loss of Sovereignty: Loss of sovereignty refers to the decline of a state's authority and independence, often resulting from external pressures or interventions by foreign powers. During the imperial age, many regions experienced this loss as imperial powers expanded their influence through colonization, economic dominance, and military intervention, leading to a significant transformation in local governance and societal structures.
Migration and Discrimination: Migration refers to the movement of people from one place to another, often in search of better opportunities, while discrimination involves unfair treatment based on characteristics such as race, ethnicity, or nationality. During the imperial age, these two concepts were closely interconnected, as colonial expansion often led to significant migration of populations, which in turn resulted in discrimination against certain groups seen as outsiders or inferior by colonizers. This interplay shaped social dynamics and contributed to tensions within societies undergoing imperial rule.
Napoleon Bonaparte: Napoleon Bonaparte was a French military leader and emperor who rose to prominence during the French Revolution and its associated wars. His rule marked a significant turning point in European history, as he expanded French territory and influence across Europe while implementing reforms that shaped modern statehood, governance, and legal systems.
Native People Displacement: Native People Displacement refers to the forced removal or relocation of indigenous populations from their ancestral lands, often as a result of colonial expansion, imperial policies, and economic exploitation. This displacement has had profound social, cultural, and economic impacts on native communities, leading to loss of identity, traditional practices, and access to resources.
Overthrowing Monarchy: Overthrowing monarchy refers to the process of removing a monarch from power, often through revolution, rebellion, or political upheaval. This act is usually driven by popular discontent with the ruling authority and can lead to significant changes in governance and societal structure, particularly during periods of imperial expansion and colonial influence.
Overpopulation Migration: Overpopulation migration refers to the movement of large groups of people from one region to another due to excessive population growth in their original areas. This phenomenon often arises in response to challenges like scarcity of resources, environmental degradation, and economic hardship, which push individuals and families to seek better opportunities elsewhere. It plays a critical role in shaping demographics, economies, and social structures during periods of imperial expansion and transformation.
Pedro I: Pedro I was the founder and first ruler of the Empire of Brazil, reigning from 1822 until his abdication in 1831. He played a crucial role in Brazil's independence from Portugal, showcasing how individual leadership influenced the larger movements of nationalism and imperialism during this era.
Political Power Structure Changes: Political power structure changes refer to significant transformations in how power is distributed and exercised within a political system. During the Imperial Age, these changes often arose from shifts in governance, colonial expansion, and responses to social and economic pressures. Such transformations reshaped the relationships between rulers and the ruled, influenced political ideologies, and altered the dynamics of empire-building and control.
Political Instability Migration: Political Instability Migration refers to the movement of people from one region or country to another due to political unrest, conflict, or instability within their home country. This type of migration often occurs during periods of imperial expansion or decline, where governance challenges can lead to human displacement and resettlement, significantly impacting both sending and receiving regions.
Portugal: Portugal was a pioneering maritime nation in the 15th and 16th centuries, known for its exploration, trade, and the establishment of an extensive colonial empire. As one of the first European powers to engage in overseas exploration, Portugal played a crucial role in shaping global trade networks and cultural exchanges during the Age of Discovery.
Poverty Increase: Poverty Increase refers to the rise in the number of individuals and families living below the poverty line, often resulting from economic downturns, social inequality, and imperial exploitation during the Imperial Age. This phenomenon was influenced by factors such as colonial policies, resource extraction, and the disruption of local economies, leading to a widening gap between the wealthy and the impoverished populations in various regions.
Religious or Ethnic Persecution Migration: Religious or Ethnic Persecution Migration refers to the movement of individuals or groups who flee their homes due to discrimination, violence, or hostility based on their religious beliefs or ethnic identity. This phenomenon has been a significant consequence of various imperial expansions and conflicts, leading to demographic shifts and cultural changes across regions during the Imperial Age. The migrations often resulted from oppressive regimes seeking to enforce conformity and suppress diversity, impacting social structures and economies in both sending and receiving areas.
Revolution and Rebellion: Revolution and rebellion refer to movements aimed at overthrowing an established authority, typically a government or regime, in order to create significant change in social, political, or economic structures. These phenomena are often driven by discontent among the populace, motivated by factors such as oppression, inequality, and the desire for greater autonomy or rights, and they play crucial roles in shaping historical narratives during the imperial age.
Rise of Democracy: The Rise of Democracy refers to the gradual shift from autocratic and monarchic systems of governance towards more representative forms of government characterized by increased citizen participation, civil liberties, and the rule of law. This movement gained momentum during the imperial age, fueled by Enlightenment ideas, social changes, and revolutions that challenged traditional authority and sought to establish political systems based on popular sovereignty and human rights.
Simon Bolivar: Simon Bolivar was a South American revolutionary leader who played a key role in the independence movements of several Latin American countries from Spanish rule in the early 19th century. Known as 'El Libertador', he is celebrated for his vision of a united Latin America, reflecting the rise of nationalism and the push for independence during this period of revolutions.
Society of Righteous and Harmonious Fists: The Society of Righteous and Harmonious Fists, commonly known as the Boxer Rebellion, was a Chinese secret society that emerged in the late 19th century, advocating for resistance against foreign imperialism and Christian missionary activities. The group believed in traditional Chinese culture and sought to protect their country from foreign influence, which they viewed as corrupting and damaging to China's sovereignty.
South Asia and Sepoy Rebellion: South Asia refers to the region encompassing India, Pakistan, Bangladesh, Nepal, Bhutan, Sri Lanka, and the Maldives. The Sepoy Rebellion, also known as the Indian Rebellion of 1857, was a major uprising against British rule in India, which significantly impacted the dynamics of imperialism in South Asia. This rebellion exemplified the growing resentment towards colonial authority and contributed to significant changes in British policies and governance in the region.
Spain: Spain was a prominent European nation that emerged as a global power from the late 15th century, particularly following the unification of the Crown of Castile and the Crown of Aragon. It played a pivotal role in establishing maritime empires, colonizing vast territories in the Americas, and significantly influencing global trade, culture, and politics during the early modern period.
Spanish and Portuguese in South America: The Spanish and Portuguese in South America refers to the colonial powers that established vast empires in the continent during the Age of Exploration, significantly impacting the culture, economy, and political landscape of the region. Their colonization efforts led to the spread of Christianity, the exploitation of indigenous peoples, and the establishment of a transatlantic slave trade, fundamentally shaping South America's demographics and societal structures.
Spread of Capitalism: The Spread of Capitalism refers to the expansion of capitalist economic systems across the globe, particularly from the 16th to the 20th century. This economic model is characterized by private ownership of production, competitive markets, and profit-driven enterprises, leading to significant social and economic transformations. The spread influenced trade patterns, colonialism, and global interactions during the Imperial Age.
Standard of Living: Standard of living refers to the level of wealth, comfort, material goods, and necessities available to a certain socioeconomic class or geographic area. It encompasses various factors including income, employment, class disparity, poverty rate, and access to services such as education and healthcare. The standard of living is critical in understanding the economic and social transformations that occurred during industrialization and imperialism, revealing how these changes affected various populations differently.
Trade Expansion: Trade Expansion refers to the significant increase in commerce and exchange of goods, services, and cultural practices between different regions and nations during the Imperial Age. This period saw the establishment of trade routes, the rise of mercantilism, and the interconnectedness of global economies, leading to both economic growth and cultural exchange.
Treaty of Paris: The Treaty of Paris refers to a series of agreements that ended the American Revolutionary War and established peace between Great Britain and the United States. This treaty not only recognized American independence but also defined borders and established rights for both countries, marking a pivotal moment in the context of the Imperial Age.
United States: The United States is a federal republic established in 1776, formed from thirteen British colonies in North America. It has been a significant player in global politics, economics, and culture, influencing various movements related to nationalism, industrialization, and international conflicts throughout its history.
Wage Rise: Wage rise refers to an increase in the amount of money paid to workers for their labor, often influenced by economic conditions, labor demands, and government policies. During the Imperial Age, wage rises were critical as they reflected broader economic trends and the changing dynamics of labor relations, especially in industrialized nations and colonies.
Weakening of Traditional Economies: The weakening of traditional economies refers to the decline and disruption of local economic systems that have relied on agriculture, handicrafts, and local trade due to the expansion of imperial powers and global market forces. This shift often resulted in dependence on foreign goods and markets, undermining local industries and livelihoods while promoting economic changes that favored imperial interests.