← back to ap world history: modern

ap world history: modern unit 9 study guides

globalization: 1900 to today

unit 9 review

Globalization has transformed the world since 1900, connecting economies, cultures, and societies. From early 20th century trade to post-WWII economic integration, the world has become increasingly interconnected through technology, trade agreements, and multinational corporations. This era has seen economic liberalization, cultural diffusion, and the rise of global institutions. It's brought prosperity to many but also criticism for exacerbating inequality and environmental issues. Understanding globalization is key to grasping modern international relations and economics.

Key Concepts and Definitions

  • Globalization: the process of increasing interconnectedness and interdependence among countries, economies, and cultures worldwide
  • Global trade: the exchange of goods and services across international borders, facilitated by trade agreements, transportation networks, and communication technologies
  • Multinational corporations (MNCs): companies that operate in multiple countries, often with headquarters in one country and subsidiaries or branches in others
  • Cultural diffusion: the spread of ideas, customs, and practices from one culture to another, often facilitated by globalization
  • Economic liberalization: the reduction of government restrictions on economic activities, such as trade, investment, and production
  • Global supply chains: the network of companies, suppliers, and distributors involved in the production and distribution of goods and services across multiple countries
  • Outsourcing: the practice of contracting out business functions or processes to external providers, often in other countries with lower labor costs
  • Global financial system: the interconnected network of financial institutions, markets, and instruments that facilitate the flow of capital across borders

Historical Context: 1900-1950

  • Early 20th century marked by increasing global trade and economic integration, driven by advances in transportation (steamships, railways) and communication (telegraph)
  • World War I (1914-1918) disrupted global trade and led to a period of economic nationalism and protectionism in the 1920s and 1930s
  • The Great Depression (1929-1939) further dampened international trade and led to the rise of autarkic policies and economic isolationism
  • World War II (1939-1945) devastated much of Europe and Asia, but also led to technological innovations (radar, computers) and the emergence of the United States as a global economic and military power
  • The post-war period saw the creation of international institutions (United Nations, World Bank, International Monetary Fund) to promote global cooperation and economic stability
  • The Bretton Woods system (1944) established a fixed exchange rate regime and the U.S. dollar as the world's reserve currency, laying the foundation for post-war economic globalization
  • The Marshall Plan (1948) provided U.S. economic aid to help rebuild Western Europe, promoting economic recovery and integration
  • The General Agreement on Tariffs and Trade (GATT) (1947) aimed to reduce trade barriers and promote international trade, setting the stage for later rounds of trade liberalization

Post-WWII Globalization

  • The post-war period saw a rapid expansion of global trade and economic integration, driven by technological advances, trade liberalization, and the rise of multinational corporations
  • The United States emerged as the dominant economic and military power, with the U.S. dollar serving as the world's reserve currency under the Bretton Woods system
  • The creation of the European Economic Community (EEC) in 1957 marked the beginning of European economic integration, which would later evolve into the European Union (EU)
  • The 1960s and 1970s saw the rise of newly independent countries in Africa and Asia, many of which pursued import-substitution industrialization (ISI) policies to promote economic development
  • The oil shocks of the 1970s (1973 and 1979) led to a period of economic stagflation and the collapse of the Bretton Woods system, ushering in an era of floating exchange rates
  • The 1980s and 1990s saw a wave of economic liberalization and market-oriented reforms, as many countries adopted neoliberal policies (Washington Consensus) to promote trade, investment, and growth
  • The end of the Cold War (1991) and the collapse of the Soviet Union accelerated the process of globalization, as former communist countries integrated into the global economy
  • The creation of the World Trade Organization (WTO) in 1995 further promoted trade liberalization and the expansion of global trade

Economic Aspects of Globalization

  • Trade liberalization: the reduction of trade barriers (tariffs, quotas) has led to a significant increase in global trade volumes and the integration of national economies
  • Foreign direct investment (FDI): the flow of capital across borders has increased, as companies seek to establish production facilities and access new markets in other countries
  • Global supply chains have become more complex and fragmented, with different stages of production located in multiple countries to take advantage of lower costs and specialized expertise
  • Outsourcing of manufacturing and services to countries with lower labor costs (China, India) has become a common practice for many multinational corporations
  • Financial globalization: the integration of financial markets and the increased flow of capital across borders has led to the emergence of a global financial system
    • This includes the growth of international banking, the rise of global stock markets, and the increased use of financial instruments (derivatives, hedge funds)
  • Economic interdependence: as countries become more integrated into the global economy, they become more vulnerable to economic shocks and crises originating in other parts of the world (2008 global financial crisis)
  • Income inequality: while globalization has contributed to economic growth and poverty reduction in some countries, it has also been associated with rising income inequality within and between countries
  • The rise of emerging economies (BRICS: Brazil, Russia, India, China, South Africa) has shifted the balance of economic power and led to increased competition for resources and markets

Cultural and Social Impacts

  • Cultural homogenization: the spread of Western culture (music, movies, fashion) and the rise of global brands (Coca-Cola, McDonald's) has led to concerns about the loss of cultural diversity
  • Cultural hybridization: the mixing of different cultural elements has also led to the emergence of new, hybrid forms of culture (fusion cuisine, world music)
  • Migration: globalization has facilitated the movement of people across borders, both for work (labor migration) and for personal reasons (tourism, education)
    • This has led to the emergence of multicultural societies and the challenges of integration and social cohesion
  • Social media and global communication networks have enabled the rapid spread of information and ideas across borders, connecting people and communities worldwide
  • The rise of global civil society: non-governmental organizations (NGOs) and social movements have become increasingly active in addressing global issues (human rights, environmental protection)
  • Globalization has also been associated with the spread of consumerism and materialism, as well as the erosion of traditional values and social structures
  • The COVID-19 pandemic has highlighted the interconnectedness of the world and the challenges of managing global health crises in an era of globalization

Technological Advancements

  • The development of containerization in the 1950s revolutionized global shipping and logistics, reducing transportation costs and enabling the growth of global trade
  • Advances in information and communication technologies (ICTs) have been a key driver of globalization, enabling the rapid exchange of information and ideas across borders
    • The internet and the World Wide Web have transformed communication, commerce, and culture, creating a global digital economy
    • Mobile phones and smartphones have become ubiquitous, connecting people and enabling access to information and services in even the most remote areas
  • Digitalization and the rise of e-commerce have transformed retail and consumer behavior, enabling the growth of global online marketplaces (Amazon, Alibaba)
  • Automation and robotics have transformed manufacturing and production processes, enabling the creation of global supply chains and the outsourcing of labor
  • Advances in transportation technologies (high-speed rail, fuel-efficient aircraft) have made global travel and trade more accessible and efficient
  • The development of global positioning systems (GPS) and geographic information systems (GIS) has enabled the tracking and optimization of global logistics and supply chains
  • Biotechnology and genetic engineering have transformed agriculture and medicine, enabling the development of new crops, drugs, and treatments with global implications

Political Dimensions

  • The rise of international organizations (United Nations, World Bank, International Monetary Fund) has created a framework for global governance and cooperation
  • Regional integration: the formation of regional trade blocs (European Union, NAFTA, ASEAN) has promoted economic integration and political cooperation among member states
  • The end of the Cold War and the spread of democracy in the 1990s led to a period of optimism about the potential for global cooperation and the spread of liberal values
  • However, the 9/11 terrorist attacks and the subsequent "War on Terror" led to increased tensions and conflicts, particularly between Western countries and the Islamic world
  • The rise of populist and nationalist movements in recent years (Brexit, Trump) has challenged the liberal international order and the institutions of global governance
  • Geopolitical tensions and great power rivalries (U.S.-China, U.S.-Russia) have intensified, leading to concerns about the stability of the global order
  • The COVID-19 pandemic has exposed the weaknesses of global governance and the challenges of coordinating responses to global crises
  • Climate change and environmental degradation have emerged as major global challenges, requiring international cooperation and collective action to address

Challenges and Criticisms

  • Economic inequality: critics argue that globalization has exacerbated income and wealth disparities, both within and between countries
  • Job losses and deindustrialization: the outsourcing of manufacturing and services to low-wage countries has led to job losses and economic dislocation in developed countries
  • Environmental degradation: the growth of global trade and production has contributed to environmental problems (deforestation, pollution, climate change)
  • Cultural homogenization: the spread of Western culture and values has led to concerns about the loss of cultural diversity and the erosion of traditional ways of life
  • Democratic deficit: critics argue that international organizations and trade agreements lack democratic accountability and prioritize the interests of corporations over citizens
  • Race to the bottom: countries may compete to attract foreign investment by lowering labor and environmental standards, leading to a "race to the bottom"
  • Global financial instability: the integration of financial markets has increased the risk of global financial crises and contagion (2008 global financial crisis)
  • Dependency and unequal power relations: some argue that globalization perpetuates unequal power relations between developed and developing countries, leading to dependency and exploitation

Case Studies and Examples

  • The rise of China as a global economic power: China's rapid economic growth and integration into the global economy has transformed global trade and geopolitics
  • The European Union (EU) as a model of regional integration: the EU has created a single market and a common currency (euro), promoting economic and political cooperation among its member states
  • The North American Free Trade Agreement (NAFTA): NAFTA created a free trade zone between the United States, Canada, and Mexico, promoting economic integration but also leading to job losses and economic dislocation
  • The 2008 global financial crisis: the crisis, which began in the U.S. housing market, quickly spread to the global financial system, highlighting the risks of financial globalization
  • The rise of global terrorism: the 9/11 attacks and subsequent terrorist incidents have highlighted the dark side of globalization and the challenges of managing global security threats
  • The COVID-19 pandemic: the rapid spread of the virus across borders has exposed the vulnerabilities of global supply chains and the challenges of coordinating responses to global health crises
  • Climate change and the Paris Agreement: the Paris Agreement (2015) represents a global effort to address the challenges of climate change, but has faced challenges in implementation and enforcement
  • The rise of global social movements: movements such as the Arab Spring, Occupy Wall Street, and Black Lives Matter have used social media and global communication networks to mobilize support and advocate for change

Frequently Asked Questions

What topics are covered in AP World Unit 9 (1900–present)?

You'll study major 20th–21st century global developments across topics 9.1–9.9. Expect advances in communication, transportation, and energy. Learn about the Green Revolution and birth-control technologies, plus disease, pandemics, and public-health responses. Environmental issues—pollution, deforestation, and climate change—are central. Global economic change shows up as neoliberalism, multinational corporations, and evolving trade networks. Social and political reform movements include decolonization, civil-rights struggles, and feminism. Cultural globalization covers media, migration, and consumer culture, while resistance to globalization and alternative models are also explored. Finally, international institutions (League/UN, IMF, World Bank) and their roles are examined. The unit emphasizes connections, continuity, and change across regions from 1900 to the present.

Where can I find an AP World Unit 9 PDF summary or notes?

Check out Fiveable’s focused Unit 9 study guide and resources (https://library.fiveable.me/ap-world/unit-9). That page includes cheatsheets and cram videos that work well as PDF-style summaries for quick review. If you need an official PDF, the College Board’s AP Course and Exam Description lists topics 9.1–9.9 and exam weighting (https://apcentral.collegeboard.org/media/pdf/ap-world-history-modern-course-and-exam-description.pdf). Use Fiveable for concise, student-friendly notes and practice, and the College Board doc for the formal unit description and exact wording.

How much of the AP World exam is Unit 9 (1900–present)?

Don't expect a single fixed percentage for Unit 9. The College Board organizes exam weighting by themes and skills across the whole course rather than by one unit. In practice, modern/globalization topics tend to appear modestly—usually a few multiple-choice items and the occasional short- or long-answer prompt. So, roughly one to a few percent of total points might tie specifically to Unit 9 content, with related concepts showing up elsewhere. For the exact exam structure and how topics are distributed, consult the AP World Course and Exam Description on AP Central (https://apcentral.collegeboard.org/media/pdf/ap-world-history-modern-course-and-exam-description.pdf).

What's the best way to study Unit 9 for AP World (globalization and modern era)?

Focus on themes and connections, not memorizing isolated facts. Make a concise timeline of major 20th–21st century events and innovations: tech, public health, environmental milestones, and major economic policy shifts. Create 1–2 concept maps linking technology, economy, culture, and politics. Practice mixed multiple-choice sets and one or two short/free-response questions that emphasize causation and continuity/change. Keep brief review sheets for key terms and run timed practice to build pacing. Finally, review international institutions and a few cross-regional case studies so you can apply concepts in different contexts.

How hard is Unit 9 compared to other AP World units?

Think of Unit 9 as generally less content-dense than many earlier chronological units (like Units 3–6). It emphasizes broad themes—globalization, technology, the environment, disease, and institutions—rather than long lists of discrete facts. That makes memorization easier, but it still demands strong analytical skills: causation, continuity and change, and comparison for DBQs and short answers. How hard it feels depends on your ability to synthesize cross-regional examples. If you practice connecting examples across regions and explaining causes and effects, you’ll probably find Unit 9 quite manageable.

How long should I study Unit 9 to master its themes and key concepts?

Plan on about 8–12 hours total spread across 1–2 weeks to really master Unit 9. The CED lists roughly 8–10 class periods for this unit, and it typically counts for about 8–10% of the exam. Break your time into focused blocks: 1–2 hours reading each major topic (9.1–9.9), 30–60 minutes watching a cram video or reviewing notes, and 1–2 hours doing targeted practice questions plus a short DBQ/LEQ outline. Use spaced retrieval with short daily reviews and schedule one full timed practice set the week before the test. If you must cram, two intense days of 6–10 hours can get you to a passing-level review, but spaced study gives better retention and deeper theme mastery. For concise notes, practice questions, cheatsheets, and a Unit 9 study guide, see (https://library.fiveable.me/ap-world/unit-9) and extra practice at (https://library.fiveable.me/practice/world).

What percentage of AP World multiple-choice/SAQs/DBQs typically draw on Unit 9 topics?

Unit 9 generally makes up about 8–10% of the AP World exam (the CED labels Globalization, c.1900–present as ~8–10% of course weighting). That means roughly that share of multiple-choice, SAQs, and FRQs combined will draw on Unit 9 themes across the exam, but the College Board doesn’t publish a precise breakdown by question type (MCQ vs SAQ vs DBQ). Expect Unit 9 content to appear in a mix of item types, so plan review time and practice accordingly. Focus on varied practice—MCQs, SAQs, and at least one DBQ/LEQ outline—so you’re ready no matter how the questions use Unit 9 material. For a focused Unit 9 study guide and practice, see (https://library.fiveable.me/ap-world/unit-9).

Where can I find AP World Unit 9 practice tests or MCQs?

You'll find Unit 9 practice questions and MCQs on Fiveable’s Unit 9 page (https://library.fiveable.me/ap-world/unit-9). For extra timed MCQ practice across the course, use Fiveable’s practice bank (https://library.fiveable.me/practice/world), which offers 1,000+ questions with explanations. The College Board posts past free-response questions and some exams on AP Central, but full multiple-choice sections from every past exam aren’t all publicly released. So for targeted Unit 9 drills and convenient practice, Fiveable’s unit page and practice bank are the most user-friendly options. Also check the cheatsheets and cram videos on the unit page if you need quick topic refreshers before practice.