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South Africa: Why Countries Acquire and Abandon Nuclear Bombs
Why did South Africa give up its nuclear weapons? In this historical case study, learn about the only country in the world to have developed and then dismantled its nuclear program.
The History of Nuclear Proliferation
What are the most significant attempts to stop the spread of nuclear weapons, and have they succeeded? Explore this timeline, from the first atomic bomb to Russia’s war in Ukraine.
History of U.S. Immigration Policy
Explore how the United States has responded to migrants throughout history—from the Chinese Exclusion Act to DACA—and how immigration policy influences the society, economy, and politics of a country.
Why Did World War II Happen?
In this free resource on World War II, understand the causes of World War II and why these issues drove countries back to battle just two decades after World War I.
How Do Countries Decide Whether to Go to War?
Learn how balances and imbalances of power contributed to World Wars I and II in this historical video.
What Are the Origins of Communism?
Explore the different ways Marx, Lenin, and Stalin interpreted communism and dive into the history of translating an ideology into policy.
Essential Events Between 1900 and 1945
Learn how two world wars and other major historical developments from the Spanish-American War to World War II reshaped global affairs in the first half of the twentieth century.
What Is Fascism?
In this free resource, learn how Benito Mussolini and Adolf Hitler rose to power and the lessons their political journeys hold for today.
How Self-Determination Shaped the Modern World
Learn how the world’s nearly two hundred countries came to be, and whether the map is set in stone.
Modern History: The Americas
Although referred to as the “New World” by Europeans, the Americas have thousands of years of history.