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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...
The United States and the Caribbean, 1877–1920
Between 1877 and 1920, the United States’ relationship with the Caribbean region underwent a profound change, which was closely tied to the transformation of the United States to an industrial and imperial power. Although the Civil...
Prohibition and Its Effects
The Eighteenth Amendment to the Constitution, ratified in January 1919 and enacted in January 1920, outlawed the "manufacture, sale, or transportation of intoxicating liquors." This amendment was the culmination of decades of effort...
The Discovery of the Americas and the Transatlantic Slave Trade
In the middle of the fifteenth century, Europe, Africa, and the Americas came together, creating—among other things—a new economy. At the center of that economy was the plantation, an enterprise dedicated to the production of exotic...
September 11, 2001
"9/11" has emerged as shorthand for the four coordinated terrorist attacks on the United States that took place on September 11, 2001. That morning, nineteen terrorists from the Islamist extremist group al Qaeda hijacked four...
"The Merits of This Fearful Conflict": Douglass on the Causes of the Civil War
In the spring of 1871, Frederick Douglass was worried. Six years after Robert E. Lee had surrendered to Ulysses S. Grant at Appomattox, Grant was now President of the United States, the Union of northern and southern states was...
Lincoln and Emancipation: Black Enfranchisement in 1863 Louisiana
As the president of a fractured nation, Abraham Lincoln faced no issue more perplexing than that of restoring the rebel states to the Union. Reconstruction during wartime was, he judged, "the greatest question ever presented to...
"I begin to see it": Lincoln the War President
In the spring of 1864, three years into the Civil War, it seemed that the Union was finally in a position to defeat the Confederacy, taking advantage of the significant losses the Confederacy had suffered in 1863. For three years,...
Why Documents Matter: An Interactive Digital Edition
Welcome to Why Documents Matter: An Interactive Digital Edition —a selection of primary sources from the Gilder Lehrman Collection curated and annotated for K–12 classrooms (print edition available here ). Scroll through the entire...
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