95 items
On Christmas Day in 1776 the American Revolution was on the verge of collapsing. Since the signing of the Declaration of Independence, the American forces had been driven from New York City to Valley Forge, Pennsylvania, and reduced...
A Lesson on Détente
Materials "Memorandums of Conversation," National Security Archive, George Washington University Notes and Excerpts from Nixon’s Meeting with Mao, February 1972 , National Security Archive, George Washington University "Nixon and...
Study Aid: Major Slave Rebellions
New York City, 1712 Like many later revolts, this one occurred during a period of social dissension among White colonists following Leisler’s Rebellion. The rebels espoused traditional African religions. Stono Rebellion, 1739 The...
The Monroe Doctrine
Unit Objective This unit is part of Gilder Lehrman’s series of Common Core State Standards–based teaching resources. These units were written to enable students to understand, summarize, and analyze original texts of historical...
Landing of Columbus, 1492
This engraving depicts Columbus’s first landing in the New World, on the island he called San Salvador, on October 12, 1492. Columbus is surrounded by his men on the beach. Discussing the landing in his journal, Columbus wrote that he...
The Conquest of Mexico: Past and Present Views
Introduction The conquest of Tenochtitlan by Hernán Cortez in 1519 is one of the most well-known examples of encounters between Europeans and Americans prior to 1600. Some primary sources that document the event still exist, though...
The Doctrine of Discovery, 1493
The Papal Bull "Inter Caetera," issued by Pope Alexander VI on May 4, 1493, played a central role in the Spanish conquest of the New World. The document supported Spain’s strategy to ensure its exclusive right to the lands...
Physicists predict a nuclear arms race, 1945
This declaration of concern, written after the United States bombed Hiroshima and Nagasaki, offers insight into the Manhattan Project, an atomic development program led by the United States. The "Preliminary Statement of the...
The Treaty of Tordesillas: Resolving "a Certain Controversy" over Land in the Americas
Background Imperial rivalries have often been resolved through war; however, the Treaty of Tordesillas is an important example of a rivalry that was resolved without hostilities through the demarcation of areas of influence by the...
Breaking from Great Britain, 1776
Sid Lapidus Collection: Liberty and the American Revolution By 1776, Thomas Paine had become the most influential writer defending the break from Great Britain. Born in England, Paine arrived in the colonies in 1774, at age 34. His...
Inside the Vault: Pearl Harbor
Originally broadcast on December 3, 2020, this session of Inside the Vault: Highlights from the Gilder Lehrman Collection explores Gilder Lehrman Collection materials relating to the Japanese attack on Pearl Harbor on December 7,...
The 1919 Black Sox Scandal
Introduction Baseball became an increasingly integral part of the American landscape in the second half of the nineteenth century and the early decades of the twentieth century. Growth of the sport occurred in conjunction with the...
Letter from Christopher Columbus on Returning from His First Voyage to the Americas, 1493
Click here to download this five-lesson unit.
Imperial Rivalries
When Christopher Columbus made his plans to sail westward across the Atlantic, he first set off across Europe to find sponsors. His brother Bartholomew went to the court of the English King Henry VII (who turned him down, much to the...
How to Analyze Primary Source Documents / F.D.R. & The Great Depression
Essential Question How effective was President Franklin Roosevelt in communicating with the American public during this time of crisis? Objectives Understand the importance of thinking critically about historical events. Be able to...
Exchanges of Culture and Conflict in the Southwest
Professor DeLay looks at changes in thought, technology, and outlook that prompted early exploration, and Spain’s late entry into colonial pursuits.
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