The trigger that set off World War I was the assassination of Archduke Ferdinand of Austria. This set in motion events with some underlying causes. Militarism, secret alliances, imperialism, and nationalistic pride all lead to World War I.
|Lesson 1||The Road to World War I|
|Lesson 2||Archduke Ferdinand is Shot|
|Lesson 3||U-Boats, Lusitania, and the United States Declares War||Printable Quiz 1||Online Quiz 1||Over There|
|Lesson 4||The United States Fights World War I|
|Lesson 5||United States World War I Heroes|
|Lesson 6||Peace Treaty of Versailles||Printable Quiz 2||Online Quiz 2||Sergeant York|