If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit: The 20th century

0

Possible mastery points

Beginning of World War I

Learn
Empires before World War I
(Opens a modal)
German and Italian Empires in 1914
(Opens a modal)
Alliances leading to World War I
(Opens a modal)
Language and religion of the former Yugoslavia
(Opens a modal)
Assassination of Franz Ferdinand
(Opens a modal)
The Great War begins
(Opens a modal)
Practice
Causes of World War IGet 3 of 4 questions to level up!

Other fronts of World War I

Learn
Serbian and Macedonian fronts
(Opens a modal)
Serbian losses in World War I
(Opens a modal)
Italy backs out of Triple Alliance
(Opens a modal)
Italian front in World War I
(Opens a modal)
Japan in World War I
(Opens a modal)
Practice
Secondary fronts of WWIGet 3 of 4 questions to level up!

Western and Eastern fronts of World War I

Learn
Schlieffen Plan and the First Battle of the Marne
(Opens a modal)
Comparing the Eastern and Western fronts in WWI
(Opens a modal)
World War I Eastern front
(Opens a modal)
Battles of Verdun, Somme and the Hindenburg Line
(Opens a modal)
Closing stages of World War I
(Opens a modal)
Technology in World War I
(Opens a modal)
Practice
Eastern and Western fronts of World War IGet 3 of 4 questions to level up!

Blockades and American entry

Learn
Blockades, u-boats and sinking of the Lusitania
(Opens a modal)
Zimmermann Telegram
(Opens a modal)
United States enters World War I
(Opens a modal)
Wilson's war message to Congress -- April 2, 1917
(Opens a modal)
1917 speech by Senator George Norris in opposition to American entry
(Opens a modal)
Practice
WWI Blockades and AmericaGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 400 Mastery points

World War I shapes the Middle East

Learn
Theodor Herzl and the birth of political Zionism
(Opens a modal)
Sinai, Palestine and Mesopotamia campaigns
(Opens a modal)
Sykes-Picot Agreement and the Balfour Declaration
(Opens a modal)
Arabia after World War I
(Opens a modal)
Practice
The Middle East during and after WWIGet 3 of 4 questions to level up!

Aftermath of World War I

Learn
Deaths in World War I
(Opens a modal)
Woodrow Wilson's Fourteen Points
(Opens a modal)
Paris Peace Conference and Treaty of Versailles
(Opens a modal)
More detail on the Treaty of Versailles and Germany
(Opens a modal)
Arabia after World War I
(Opens a modal)
Practice
WWI AftermathGet 3 of 4 questions to level up!
World War IGet 5 of 7 questions to level up!

Quiz 2

Level up on the above skills and collect up to 300 Mastery points

Rise of Hitler and the Nazis

Learn
Initial rise of Hitler and the Nazis
(Opens a modal)
Hitler's Beer Hall Putsch
(Opens a modal)
Hitler and the Nazis come to power
(Opens a modal)
Night of the Long Knives
(Opens a modal)
Nazi aggression and appeasement
(Opens a modal)
Practice
Rise of HitlerGet 3 of 4 questions to level up!

Rise of Mussolini and Fascism

Learn
Fascism and Mussolini
(Opens a modal)
Mussolini becomes Prime Minister
(Opens a modal)
Mussolini becomes absolute dictator (Il Duce)
(Opens a modal)
Mussolini aligns with Hitler
(Opens a modal)
Practice
Fascism and MussoliniGet 3 of 4 questions to level up!

Quiz 3

Level up on the above skills and collect up to 200 Mastery points

Overview of Chinese history 1911-1949

Learn
Overview of Chinese history 1911 - 1949
(Opens a modal)

Overview of World War II

Learn
Beginning of World War II
(Opens a modal)
1940 - Axis gains momentum in World War II
(Opens a modal)
1941 Axis momentum accelerates in WW2
(Opens a modal)
World War II in the Pacific in 1942
(Opens a modal)
1942 Tide turning in World War II in Europe
(Opens a modal)
1943 Axis losing in Europe
(Opens a modal)
American progress in the Pacific in 1944
(Opens a modal)
1944 - Allies advance further in Europe
(Opens a modal)
1945 - End of World War II
(Opens a modal)

The Cold War

Learn
Communism
(Opens a modal)
Korean War overview
(Opens a modal)
Bay of Pigs Invasion
(Opens a modal)
Cuban Missile Crisis
(Opens a modal)
Vietnam War
(Opens a modal)
Allende and Pinochet in Chile
(Opens a modal)
Pattern of US Cold War interventions
(Opens a modal)

Human rights

Learn
The Holocaust
(Opens a modal)
International Human Rights
(Opens a modal)
Independence movements in the 20th Century
(Opens a modal)
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 900 Mastery points!

About this unit

You cannot properly understand current world events without understanding the history of the 20th Century. This topic takes us on a journey from the end of Imperialism through two world wars and the Cold War and brings us to our modern world.