Khan Academy
Khan Academy: Ap Us History: 1890 1945: Introduction to the Age of Empire
Discusses the transition of the United States in the late 19th century from an isolationist country into an imperial power with colonies of its own and the reasons for this abrupt change in foreign policy. Includes questions for students...
Khan Academy
Khan Academy: Ap Us History: 1890 1945: The Age of Empire: Spanish American War
Discusses the causes, events, and consequences of the Spanish-American War and how the United States acquired several territories in the aftermath. Includes questions for students at end.