World History A


On June 28, 1914, an assassination in the Balkans created an international crisis, igniting a European powder keg created by nationalism, massive military buildups, complex alliances, and imperial rivalries. By August, Europe was at war. The widespread use of trench warfare on the Western Front in France created a destructive stalemate that lasted four years. The introduction of new weapons, including heavy artillery, tanks, machine guns, and poison gas, produced casualty levels that dwarfed those of previous wars.

Looking Ahead to AP Euro...

What will they want you to know next year?

  1. Explain the context in which global conflict developed in the 20th century.
  2. Explain the causes and effects of World War I.
  3. Explain the causes and effects of the Russian Revolution.
  4. Explain how and why the settlement of World War I failed to effectively resolve the political, economic, and diplomatic challenges of the early 20th century.


Lesson 1: World War I Begins

Causes of the War
 Nationalism, Imperialism, Militarism, and Alliances
 Internal Dissent
The Outbreak of War
 Assassination in Sarajevo and Responses
 The Conflict Broadens

Lesson 2: World War I

1914 to 1915: Illusions and Stalemate
 The Western Front
 The Eastern Front
Trench and Air Warfare
A World War
 Widening of the War
 Entry of the United States
The Impact of Total War
 Increased Government Powers
 Manipulation of Public Opinion
 Total War and Society

Lesson 3: The Russian Revolution

Background to Revolution
Lenin and the Bolsheviks
The Bolsheviks Seize Power
Civil War in Russia
Triumph of the Communists

Lesson 4: World War I Ends

The Last Year of the War
 Collapse and Armistice
 Revolutionary Forces
The Peace Settlements
 Wilson's Proposals
 The Paris Peace Conference
 The Treaty of Versailles
 The Legacies of the War


Chapter Note-Taking Guide
Chapter Study Guide
Chapter Place and Time
Chapter Skillbuilder

Lessons in text-only form
  Lesson 27-1
  Lesson 27-2
  Lesson 27-3
  Lesson 27-4