68 items
On December 7, 1941, two hours after the Japanese attack on American military installations at Pearl Harbor, Hawaii, Japan declared war on the United States and Great Britain, marking America’s entry into World War II. The Japanese...
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...
President Truman’s Farewell Address, 1953
It has none of the catch phrases or warnings of other, more famous presidential inaugural or farewell addresses, no cautions against permanent alliances or military-industrial complexes, no appeals to better angels or declarations...
Surrender of the British General Cornwallis to the Americans, October 19, 1781
These three documents—a map, a manuscript, and a print—tell the story of the surrender of British commander Charles Cornwallis to American General George Washington. In October 1781, the successful siege of Yorktown, Virginia, by...
Farewell to Manzanar: Japanese Internment Camps During World War II
Background In 1886, after the arrival of Commodore Perry, the Japanese government lifted its ban on emigration and allowed its citizens to move to other countries. In the years after that, however, the United States made it more...
Bruised Egos, Battles, and Boycott: The 1980 Moscow Olympics
Background Politics and sports have intermingled since the inception of the Olympic Games in Greece, but not until the 1980 Olympics did people fear that politics might destroy the Olympic movement and spirit. The Union of Soviet...
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...
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...
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...
The Roosevelt Corollary to 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...
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...
Early European Imperial Colonization of the New World
Introduction By the early to mid-seventeenth century, Spain, England, France, and the Netherlands were all competing for colonies and trade around the world. Beginning in the late fifteenth century, explorers, conquerors, missionaries...
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...
American Music Goes to War
Entertainment is always a national asset. Invaluable in time of peace, it is indispensable in wartime. —Franklin D. Roosevelt, 1943 Background Music during World War II had an unprecedented impact on America, both on the home front...
The British evacuation of Boston, 1776
On March 25, 1776, only eight days after the British evacuation of Boston, the Continental Congress authorized a medal, “George Washington before Boston,” to commemorate the event. During the war, Congress commissioned eleven medals...
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