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In the spring of 1861, the United States of America split into two hostile countries—the United States and the new Confederate States of America. The two opposing heads of state agreed about what was causing the rupture—the long...
The French and Indian War
Unit Objective This unit is part of Gilder Lehrman’s series of Common Core State Standards–based teaching resources. These units were developed to enable students to understand, summarize, and analyze original texts of historical...
The Gettysburg Address: Identifying Text, Context, and Subtext
Objective This lesson is part of Gilder Lehrman’s series of Common Core State Standards–based teaching resources. These resources were developed to enable students to understand, summarize, and analyze original texts of historical...
The Great Depression, the New Deal, and World War II in the American West
The Great Depression and World War II, far and away the worst economic calamity and the costliest foreign war in American history, profoundly affected every part of the United States. Changes in the West were especially obvious. From...
The Mexican-American War: Arguments for and against Going to War
Click here to download this three-lesson unit.
The Open Door Policy and the Boxer War: The US and China
By 1899, the United States had become a world power. It was not only the world’s greatest industrial nation, but in the war with Spain it had demonstrated a willingness to use its power militarily. It had acquired possessions near and...
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