Unit 9.9 — Continuity and Change in a Globalized World

Topic 9.9 closes the entire AP World History course with the CCOT skill: technology genuinely transformed communication, medicine, agriculture, and economics from 1900 to the present, while religious identity, social hierarchy, class inequality, and uneven regional wealth persisted — echoing continuities traced since Unit 1.

14 minAP® World History: Modern
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Topics 9.1–9.8 covered every piece of globalization's story: technology, disease, environment, economics, reform, culture, resistance, and the institutions built to manage it all. Topic 9.9 closes not just Unit 9 but the entire AP World History course the same way Topics 4.8, 5.10, 6.8, 7.9, and 8.9 each closed their own units — with the CCOT skill, now applied to the full sweep from 1900 to the present, and asking you to weigh how much science and technology actually changed the world versus what stayed remarkably constant.

The CCOT thesis formula, one final time

The same structure that closed Units 4 and 5 applies here at full course scale: "While [a named continuity] persisted, [a named change] transformed [a named region or system]." Because this topic spans the entire unit — and implicitly draws on the whole course — the strongest theses pull specific, named evidence from across multiple topics rather than staying confined to Unit 9 alone.

What genuinely changed, 1900–present

Science and technology transformed nearly every dimension of daily life: communication and transportation collapsed distance further than ever (Topic 9.1's internet, air travel, and shipping containers, building directly on Topic 5.5's telegraph and steamships); medicine extended life expectancy dramatically through vaccines and antibiotics (Topic 9.2); agriculture was industrialized through the Green Revolution's combined innovations (Topic 9.1); economies shifted toward free-market reform and liberalization after decades of Cold War command-economy competition (Topic 9.4, following Topic 7.4's and 8.4's earlier state-controlled models); manufacturing relocated globally through multinational supply chains (Topic 9.4's maquiladoras and export-oriented industrialization); and consumer culture became genuinely global (Topic 9.6's Hollywood, Bollywood, and worldwide brands).

What stayed remarkably constant despite all of this

The exam specifically rewards resisting the temptation to treat 1900–present as total transformation. Several continuities persisted throughout, echoing similar continuity points from Topics 4.8 and 5.10 earlier in the course: religious traditions remained a powerful source of identity and political mobilization (Topic 9.7's religious fundamentalism as resistance to secularization proves religion never receded as a historical force); social hierarchies and class inequality persisted even as absolute wealth grew (Topic 9.4's uneven globalization benefits, Topic 9.3's unequal environmental burden); uneven access to technology meant the genuine advances of Topics 9.1–9.2 never reached all populations equally; and stark regional differences in wealth and opportunity persisted, tracing continuously back through Topic 8.6's inherited colonial-era economic dependency all the way to Topic 6.4's export economies.

A course-spanning model thesis

"While science and technology transformed communication, medicine, agriculture, and consumer culture into a genuinely interconnected global system between 1900 and the present — collapsing distances the telegraph and steamship (Unit 5) had only begun to shrink — this transformation did not eliminate the older patterns of unequal wealth, religious identity, and social hierarchy that had structured every earlier unit of this course, from the tribute systems of Unit 1 through colonial export economies (Unit 6) to Cold War-era inequality (Unit 8); globalization redistributed and intensified these patterns more often than it erased them." This thesis deliberately reaches back across nearly the entire course — exactly the kind of long-range synthesis this final topic is built to reward.

Why this matters for the exam

Topic 9.9 is the last CCOT skill-check of the course, and it rewards the same discipline as every earlier one: name a specific continuity and a specific change, explain the relationship between them rather than listing each in isolation, and support both sides with precise evidence. Because this is the course's final topic, the strongest possible answer draws evidence from multiple units — proof that you can trace a single analytical thread (what changes, what persists, and why) across the full 1200-to-present sweep this entire course has covered.

Practice: Free-Response Questions

Real AP-format prompts for this unit, each with a full model answer and the exact points a College Board reader would award. Click a question to see the answer — not AI-graded, just scored the way the real exam is scored.

DBQ

Evaluate the extent to which the period from 1900 to the present is more accurately characterized as an era of global integration than as an era of persistent global inequality.

Evaluate the extent to which the period from 1900 to the present is more accurately characterized as an era of global integration than as an era of persistent global inequality. Document 1 Source: Norman Borlaug, agricultural scientist, Nobel Peace Prize lecture, Oslo, Norway, December 11, 1970 "The green revolution has won a temporary success in man's war against hunger and deprivation; it has given man a breathing space." Document 2 Source: Articles of Agreement of the International Monetary Fund, Article I, adopted at the Bretton Woods Conference, July 1944 "To facilitate the expansion and balanced growth of international trade, and to contribute thereby to the promotion and maintenance of high levels of employment and real income and to the development of the productive resources of all members as primary objectives of economic policy." Document 3 Source: Kyoto Protocol to the United Nations Framework Convention on Climate Change, Article 3, adopted December 1997 "The Parties included in Annex I shall, individually or jointly, ensure that their aggregate anthropogenic carbon dioxide equivalent emissions...do not exceed their assigned amounts...with a view to reducing their overall emissions of such gases by at least 5 per cent below 1990 levels in the commitment period 2008 to 2012." Document 4 Source: Universal Declaration of Human Rights, Article 1, adopted by the United Nations General Assembly, December 10, 1948 "All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a spirit of brotherhood." Document 5 Source: Léopold Sédar Senghor, Senegalese poet and statesman, Liberté 1: Négritude et Humanisme, 1964 "Négritude is the sum of the cultural values of the black world as they are expressed in the life, the institutions, and the works of black men." Document 6 Source: John Sweeney, president of the American Federation of Labor and Congress of Industrial Organizations (AFL–CIO), remarks at a labor rally during the World Trade Organization ministerial conference, Seattle, Washington, November 30, 1999 "American families understand the cruelty of a world economy regulated in favor of the corporations." Document 7 Source: Chart — Illustrative global average-income index, Global North vs. Global South, 1900–2000 Chart: Widening Global Income Gap, 1900–20000x10x20x30xGlobal NorthGlobal South190019502000Illustrative average-income index (1900 Global-North baseline = 3x);the absolute gap widens even as both regions grow
Model answer

While the documents show real institutional and technological integration knitting the world together economically, environmentally, politically, and culturally after 1900, that same evidence shows integration and inequality advancing side by side rather than integration ever fully replacing inequality, so the period is best characterized as one of expanding global connection built on top of, not instead of, persistent uneven benefit.

The interconnected world these documents describe grew directly out of nineteenth-century foundations already in place before 1900 — steamship trade, telegraph communication, and European colonial economic control over much of Africa and Asia. The twentieth century then multiplied that earlier connectivity through new technology, new international institutions founded specifically to manage a more integrated world, and new movements demanding a fairer share of integration's actual benefits.

Several documents show integration proceeding through deliberate institution-building and scientific achievement. Document 2 records the IMF's founding purpose as explicitly expanding and balancing international trade and raising employment and income across its member states, a direct successor to the looser, less coordinated trade relationships of the pre-1944 world. Document 1 corroborates the same pattern from agriculture rather than finance: Borlaug's description of the Green Revolution as a "breathing space" won against hunger is evidence that international agricultural science was raising food output on a genuinely global scale by 1970. Document 3's Kyoto Protocol extends the same institutional logic to the environment, and Document 4's Universal Declaration of Human Rights extends it to political rights, together suggesting that after 1900 states increasingly chose to manage economic growth, environmental strain, and human dignity through shared multilateral frameworks rather than isolated national policy alone.

Document 2 needs to be read carefully rather than taken at face value: because Article I comes from the IMF's own founding legal document rather than from an outside observer, it should be understood as the institution's own stated purpose rather than as a neutral verdict on whether that purpose was actually achieved. Its intended audience was the Allied governments signing the agreement at Bretton Woods in 1944, who had every reason to describe the new institution in the most optimistic possible terms.

Other documents make the limits of that integration just as visible. Document 5's Senghor writes from a position of asserting a specifically Black cultural identity against the racial hierarchies that colonial-era economic integration had imposed, evidence that the same century of growing global exchange also produced entire movements devoted to reclaiming a cultural dignity that exchange's earlier, unequal form had denied. Document 6 makes the unevenness explicit: Sweeney, speaking for American labor at the very city hosting a WTO ministerial meeting, directly accuses the era's central trade institution of regulating the world economy "in favor of the corporations" — precise evidence that the integration celebrated in Documents 1 through 4 was experienced by organized labor as structurally unfair rather than broadly shared. Document 7's MSF charter is itself evidence of integration's gaps: an NGO founded specifically because existing states and institutions were not reliably delivering medical care "irrespective of race, religion, creed or political convictions" to populations in crisis, so its very existence testifies to a persistent gap that formal integration had not closed by 1971.

Sourcing these two documents further sharpens the argument. Sweeney's purpose in Document 6 was explicitly to mobilize American union members against the WTO meeting taking place in his own city, so his description of a world economy "regulated in favor of the corporations" is a persuasive labor-movement argument rather than a neutral assessment — though the tens of thousands of people who gathered to hear arguments like his is itself evidence that the grievance was widely shared rather than an isolated complaint. MSF's charter in Document 7, meanwhile, was written by the organization's own founders to describe their mission to potential donors, volunteers, and the governments in whose territory they intended to operate, so its claim of acting "irrespective of race, religion, creed or political convictions" functions partly as a founding ideal the organization committed itself to living up to, not simply a description of conditions already achieved everywhere it worked.

Evidence beyond the documents reinforces the same tension from another angle: the multinational supply chains built around Mexico's maquiladoras and Bangladesh's garment factories were a direct product of the trade integration Document 2's IMF and the broader Bretton Woods system helped enable, yet the low-wage assembly work they generated is widely cited as exactly the kind of uneven benefit that fueled the grievance Sweeney voices in Document 6.

A fuller account should not treat integration and inequality as opposing forces but as genuinely intertwined outcomes of the same process. The institutions described in Documents 2, 3, and 4 did not fail to integrate the world — they succeeded at it — and it was precisely that success that created an economy large enough and connected enough for unevenly distributed gains to become visible and organizable as a grievance, which is exactly what Document 6's Seattle protest and Document 7's MSF represent in different forms. Read together, the seven documents support a period best described not as integration overcoming inequality, nor as inequality preventing integration, but as integration and inequality expanding together as two faces of the same interconnected century.

Scoring · 7 points
1. Thesis — earns the point for a defensible, prompt-responsive claim on the "extent to which" question: integration and inequality expanded together across the period rather than one displacing the other.
2. Contextualization — earns the point for situating the argument against nineteenth-century steamship, telegraph, and colonial-era foundations that existed before 1900.
3. Evidence from documents — earns the point for using the content of at least three documents to support the argument (the essay uses all seven).
4. Evidence from documents — earns the point for using the content of at least four of the seven documents to support the argument (the essay uses all seven: Documents 1–7).
5. Evidence beyond the documents — earns the point for citing specific outside evidence not found in the documents: the maquiladora and Bangladeshi garment-factory supply chains.
6. Sourcing — earns the point for explaining how point of view, purpose, or audience is relevant to the argument for at least two documents (the essay sources Documents 2, 6, and 7).
7. Complexity — earns the point for the closing move reframing integration and inequality as intertwined outcomes of the same process rather than opposing trends, supported by specific document-based reasoning rather than asserted in general terms.
LEQ

Develop an argument that evaluates the extent to which technological innovation was the primary cause of increased global economic interdependence in the period from 1900 to the present.

Develop an argument that evaluates the extent to which technological innovation was the primary cause of increased global economic interdependence in the period from 1900 to the present.

Model answer

While technological innovation supplied the physical infrastructure that made a genuinely interconnected global economy possible after 1900, deliberate institutional choices — new treaties, organizations, and government policies — did at least as much as any single invention to cause the deep economic interdependence that resulted, so technology is best understood as a necessary but not sufficient cause of this era's global economic integration.

The late nineteenth-century world already exchanged goods and information over the steamship and telegraph networks built during the Industrial Revolution and European colonial expansion, but travel, cargo movement, and information transfer still operated on a scale of days and weeks. The twentieth century needed both faster technology and new international rules to turn that older, slower connectivity into the constant, high-volume interdependence historians now associate with modern globalization.

Technology's causal role is real and substantial. Air travel cut international travel time from weeks to hours, and the shipping container standardized how cargo moved between ships, trains, and trucks, sharply reducing the cost and time of moving goods across borders. Combined with radio, cellular networks, and the internet collapsing the time it took information and financial transactions to cross those same borders, these inventions gave multinational corporations the physical means to design a product in one country, source parts from a second, and assemble it in a third — something not possible at anything like this speed or cost before 1900.

But institutions caused interdependence just as directly, and arguably made technology's economic effects possible in the first place. The 1944 Bretton Woods conference created the International Monetary Fund to stabilize currencies and the World Bank to fund long-term development, and the 1995 founding of the World Trade Organization gave countries an enforceable, shared set of trade rules and a body to settle disputes between them, while regional agreements such as NAFTA, the European Union, and ASEAN lowered barriers further within their own regions. These were deliberate political choices, not technological byproducts; without them, the same shipping containers and cellular networks would have had far less capacity to knit separate national economies into one interdependent system, since goods and data can move quickly without producing durable economic interdependence unless states also agree to trust and rely on the resulting exchange.

The two causes reinforced each other further as governments turned toward economic liberalization — privatizing state industries, cutting tariffs, and accepting IMF- and World Bank-linked structural adjustment programs as a condition of loans — which opened economies that new transportation and communication technology could now actually reach. Interdependence therefore grew fastest exactly where technological capacity and institutional openness arrived together.

This causal claim needs one further qualification: the interdependence these combined causes produced was never distributed evenly. Multinational corporations locating assembly work in Mexican maquiladoras or Bangladeshi garment factories profited disproportionately compared to the workers whose labor actually built the interdependent system, a distinction that helps explain why the same institutions that caused integration — the WTO among them — also became the direct target of organized anti-globalization protest by the century's end. Recognizing that uneven outcome does not undercut the causal argument above; it clarifies that technology and institutions together caused interdependence, but never caused it to be shared equally.

Scoring · 6 points
1. Thesis — earns the point with a defensible, prompt-responsive claim on the "extent to which" causation question: technology as a necessary but not sole cause, with institutional choices as a comparably significant cause of global economic interdependence.
2. Contextualization — earns the point by situating the argument against the late nineteenth-century steamship-and-telegraph connectivity that existed before 1900, describing the broader situation the period's causes built on.
3. Evidence (specific) — earns the point for specific named evidence: air travel and the shipping container as concrete technologies reducing the cost and time of moving goods and people.
4. Evidence (supports argument) — earns the point for specific named evidence used argumentatively rather than listed: Bretton Woods, the IMF, the World Bank, the WTO, and regional trade agreements (NAFTA, EU, ASEAN), tied explicitly to the claim that institutions caused interdependence alongside technology.
5. Reasoning skill (causation) — earns the point for organizing the essay around a technology-cause versus institution-cause comparison and explicitly explaining how the two reinforced each other rather than simply listing unconnected causes.
6. Complexity — earns the point for the closing qualification that interdependence's benefits were unevenly distributed, linking that unevenness back to a specific consequence (organized anti-globalization protest) rather than asserting complexity without support.
SAQ

Answer parts (a), (b), and (c).

Answer parts (a), (b), and (c).

(a) Identify ONE specific technology described in the period 1900–present that expanded global communication or transportation, and explain how it changed the scale or speed of global exchange compared to earlier periods.

(b) Explain ONE specific way in which technological or medical advances after 1900 produced benefits that were NOT evenly distributed across different populations.

(c) Identify ONE specific disease from the period after 1900 whose persistence is best explained by unequal access to existing medical knowledge and infrastructure rather than by a lack of scientific understanding of how to prevent or treat it, and explain why that distinction matters.

Model answer

(a) The shipping container standardized how cargo was loaded, unloaded, and transferred between ships, trains, and trucks, letting goods cross the globe far faster and more cheaply than the steamship-and-telegraph network of the late nineteenth century allowed; the result was a scale and continuity of global trade that earlier transportation infrastructure could not have supported.

(b) Global life expectancy and food supply rose sharply after 1900 as vaccines, antibiotics, and the Green Revolution's high-yield crop varieties spread across much of the world, but neither reached every region at the same pace — wealthier, better-connected populations captured most of the early gains while poorer, more isolated communities continued facing the shortages and preventable illness the new technology was supposed to solve.

(c) Malaria persisted across large parts of the world after 1900 mainly because the sanitation systems, healthcare infrastructure, and clean water access needed to control it were unavailable where poverty was worst, not because doctors lacked the medical knowledge to prevent or treat the disease; the distinction matters because it locates the cause of continued suffering in unequal infrastructure and access rather than in any remaining gap in scientific understanding.

Scoring · 3 points
1. (a) Earns the point for naming one specific technology from this period (e.g., the shipping container, air travel, radio, cellular networks, or the internet) and explaining specifically how it increased the speed, scale, or continuity of global exchange relative to an earlier period.
2. (b) Earns the point for identifying one specific benefit of post-1900 technological or medical change (e.g., rising life expectancy, expanded food production, greater control over fertility) AND explaining specifically why access to that benefit was uneven across populations.
3. (c) Earns the point for naming one specific poverty-associated disease (malaria, tuberculosis, or cholera) and explaining that its persistence resulted from unequal infrastructure and access rather than from a lack of medical knowledge.
SAQ

Use the quotation below to answer parts (a), (b), and (c).

Use the quotation below to answer parts (a), (b), and (c).

"[Glocalization] means the simultaneity — the co-presence — of both universalizing and particularizing tendencies." — Roland Robertson, sociologist, remarks at a 1997 conference on globalization and indigenous culture

(a) Explain what Robertson means by the "co-presence" of universalizing and particularizing tendencies, using ONE specific example of a cultural product or industry from the period 1900–present that illustrates this process.

(b) Explain ONE specific way that a different cultural product or industry from the same period illustrates cultural homogenization more than hybridization.

(c) Identify ONE specific example of organized resistance to globalization from the period 1900–present, and explain the specific grievance that motivated it.

Model answer

(a) Robertson's "co-presence" describes a single cultural product carrying a globally shared format and locally specific content at the same time rather than one replacing the other, and Bollywood illustrates this directly: the Mumbai-based film industry borrows international shooting locations, English dialogue, and Hollywood-style production techniques as its universalizing element, while filling those same films with Hindi-language music, dance sequences, and family-centered storytelling drawn from Indian tradition as its particularizing element, so the films are neither purely local nor purely global but both simultaneously.

(b) Hollywood illustrates homogenization more than hybridization: American studio films dominate box-office charts in dozens of countries at once, and because those films circulate with largely the same content, language conventions, and star system wherever they are shown, they spread a fairly uniform, American-inflected set of tastes in fashion, language, and youth identity worldwide rather than being substantially reshaped by each local market that receives them.

(c) The 1999 Seattle protests against the World Trade Organization brought together labor unions, students, and environmental and human-rights groups who objected that the WTO's trade rules let multinational corporations relocate production to wherever labor and environmental regulation was weakest, displacing local workers and industries without giving those workers any voice in the rules governing that global trade system.

Scoring · 3 points
1. (a) Earns the point for correctly explaining Robertson's phrase (a global format and local content operating together in the same product) AND supporting it with one specific, accurate example (e.g., Bollywood).
2. (b) Earns the point for identifying one specific different example illustrating homogenization AND explaining why it functions as homogenization rather than hybridization.
3. (c) Earns the point for identifying one specific resistance movement or event (e.g., the 1999 Seattle WTO protests, religious fundamentalism, China's Weibo as a local alternative platform) and explaining the specific grievance behind it.
SAQ

Answer parts (a), (b), and (c).

Answer parts (a), (b), and (c). Each part should be answered in complete sentences.

(a) Identify ONE specific reform movement after 1900 that advocated for expanded political or social rights for women in a particular country or region, and explain ONE specific outcome it achieved.

(b) Explain ONE specific way government-sponsored labor migration programs, such as the U.S.-Mexico Bracero Program (1942-1964), reshaped economic ties between sending and receiving countries.

(c) Explain ONE specific way Soviet irrigation policy in Central Asia after 1900 illustrates the tension between economic development goals and environmental sustainability.

Model answer

(a) The global women's rights movement gained institutional support when the United Nations declared 1975 International Women's Year and then launched the UN Decade for Women (1976-1985), convening world conferences in Mexico City, Copenhagen, and Nairobi that brought together government delegations and thousands of nonguvernmental activists. One concrete outcome of this movement was placing issues such as pay equity, land ownership rights, and violence against women onto the formal agendas of national governments and international bodies for the first time, giving women's rights advocates a recognized platform for continued pressure after the decade ended.

(b) The Bracero Program brought roughly 4.5 million Mexican workers into the United States on temporary contracts between 1942 and 1964 to fill agricultural labor shortages, with employers withholding a portion of wages as forced savings that were forwarded back to Mexico. This created a lasting remittance relationship between the two economies and normalized large-scale labor migration northward, so that even after the program ended in 1964 many rural Mexican communities remained economically tied to seasonal wage work in the United States.

(c) Beginning under Stalin's five-year plans and continuing for decades, Soviet planners diverted the Amu Darya and Syr Darya rivers to irrigate vast cotton fields in Uzbekistan and Turkmenistan in order to make the USSR self-sufficient in cotton production. By the 1980s this diversion had cut off nearly all river flow into the Aral Sea, shrinking it by roughly three-quarters of its volume and exposing a toxic, salt-laden seabed that caused severe respiratory illness and elevated infant mortality in nearby communities, showing how a policy aimed at economic self-sufficiency produced a severe and lasting environmental disaster.

Scoring · 3 points
1. (a) Identifies a specific post-1900 women's rights movement/institution (e.g., UN Decade for Women) and explains a specific outcome it achieved.
2. (b) Explains a specific way a labor migration program (e.g., the Bracero Program) reshaped economic ties, such as remittance flows or normalized cross-border migration, between sending and receiving countries.
3. (c) Explains a specific way Soviet Central Asian irrigation policy (cotton production diverting the Amu Darya/Syr Darya) traded environmental sustainability for economic development, citing the Aral Sea's desiccation.