Introduction: What We Will Learn in This Unit

Hello everyone! Welcome to the third major gateway of Comprehensive History: "Changes in the International Order, Popularization, and Us."
At first, terms like "international order" and "popularization" might sound a bit challenging, but don't worry! We will take it step by step.

In the previous unit, "Modernization and Us," we learned about the Industrial Revolution, the opening of Japan, and the formation of nation-states. In this introductory unit, "Inquiry into Changes in the International Order and Popularization," we will examine how the world and people's lives changed drastically as the 20th century began, using various primary sources and historical materials as clues to formulate our own "historical questions (topics for inquiry and reflection)."

As global interconnections intensified, the United States and the Soviet Union emerged as superpowers, while ordinary citizens—the masses—stepped onto the center stage of society and politics. As we analyze historical sources from this period, let's formulate our own questions: "Why did these changes occur?"

[Key Point] Goal of This Unit
Learn to interpret information from diverse sources (statistics, photographs, official documents, newspapers, etc.) and express "historical questions" keeping the following five perspectives in mind!


1. Five Major Changes Explored Through Historical Sources

In Comprehensive History, rather than simply memorizing facts, it is crucial to analyze historical sources to understand the background of changes. Here, we outline the five core themes to focus on when examining sources.

1. Closer International Relations

Rapid advances in transportation and communication technologies dramatically strengthened the bonds between countries across the globe. An event or economic shift occurring in one region could now spread worldwide in the blink of an eye.
Example: War or economic turmoil in one country came to directly affect societies across the ocean in Japan, Asia, and Europe.

2. The Rise of the United States and the Soviet Union

Replacing the Western European powers that had led the world through the 19th century, two emerging superpowers stepped into the global spotlight.
These were the United States, championing capitalism and democracy, and the Soviet Union, a socialist state born out of the Russian Revolution. The arrival of these two nations would fundamentally transform the course of world history.

3. Movements Toward Colonial Independence

In colonies and semi-colonies across Asia and Africa, nationalist movements striving for self-determination and independence gained tremendous momentum. Subjugated peoples began to assert their right to govern their own nations.

4. Shifts in the Political, Economic, and Social Status of the Masses

In the past, politics and society were driven almost exclusively by privileged elites and powerful figures. However, through the spread of education and the rise of social movements, ordinary citizens, workers, farmers, and women advancing their status began demanding political participation. Across the world, movements grew to expand suffrage and empower the masses.

5. Changes in Lifestyles

With the rise of mass society came the era of mass production and mass consumption. The development of mass media—such as newspapers, magazines, and radio—allowed new cultures and trends to be shared widely. Daily lifestyles, from clothing, food, and housing to leisure activities, evolved into forms remarkably similar to our lives today.

[Quick Fact] Who are "the masses" (taishū)?
"The masses" refers to ordinary people who make up the majority of society, without holding special social ranks or privileges. Everyone living today is part of "the masses." The 20th century was an era when ordinary people like us stepped up to become the protagonists driving history!


2. Steps to Formulate "Questions" Using Historical Sources

In Comprehensive History, examining a source is only the beginning—the real goal is to "express questions" that stem from it. Keep it simple and follow these three steps:

Step 1: Check the basic information of the source

First, identify the format and the period when the source was created.
• Is it a statistical chart? A photograph? A newspaper article from the period? An official document?
• When was it made, by whom, and for what purpose?

Step 2: Identify changes and distinctive features

Pay close attention to any "shifts" or "changes" shown in the source.
• In which time period do figures rise or fall sharply?
• What can you tell from people's clothing, streetscapes, or facial expressions?
• When comparing two different sources, do you notice any commonalities or contradictions?

Step 3: Frame your curiosities into historical "questions"

Based on the changes you identified, put your doubts into words using "Why?" or "How?"
• "Why did demands for women's social advancement and political participation surge during this specific period?"
• "How did the rise of the United States and the Soviet Union affect the geopolitical position of Asia and Japan?"
• "What technologies and media developments lay behind the transformation of people's daily lifestyles?"

[Common Pitfall] Do not confuse an open "question" with a simple "quiz answer"!
Questions with a single, factual answer—such as "In what year did World War I begin?"—are not the kind of "historical questions" we are aiming for here.
What Comprehensive History values most are "questions involving intertwined causes and backgrounds" and "questions that probe the mindsets of people and social structures of the time." Wondering "Why did this happen?" in your own words is the vital first step.


3. Connecting to Future Learning

The "questions" you formulate here will be explored in depth across the upcoming chapters:

• World War I and the System of International Cooperation: The shock of total war, the establishment of the League of Nations, the Russian Revolution and the birth of the Soviet Union, the Taisho Democracy movement, and the flourishing of mass culture.
• Economic Crises and World War II: The outbreak of the Great Depression, the rise of fascism, the devastation of World War II, the establishment of the United Nations, and postwar Japan's conclusion of the peace treaty and recovery of independence.
• Contemporary Issues: Examining challenges in modern society through perspectives such as freedom and restriction, equality and disparity, development and preservation, integration and division, and conflict and cooperation.

Note: We will explore each of these historical developments in detail in subsequent chapters, so look forward to it!


[Summary: Key Takeaways]
• This unit serves as an introduction to analyzing sources and framing historical questions focused on "changes in the international order" and "popularization"!
• Keep an eye on five key perspectives: 1) closer international relations, 2) the rise of the US and the USSR, 3) colonial independence movements, 4) the rising status of the masses, and 5) shifts in daily lifestyles.
• Build the habit of using facts drawn from sources to reflect on: "Why did these changes occur?" and "How do they connect to our lives today?"