182 items
President Theodore Roosevelt wrote this letter to William H. Hunt, the governor of Porto Rico (as Puerto Rico was known at the time), just twelve days after he assumed the presidency following President William McKinley’s...
Creating the Air Force, 1924
In this July 1924 letter to aviation pioneer and publisher Lester D. Gardner, Brigadier General William "Billy" Mitchell prophesied the coming tide of Japanese militarism. Concerned about Japan’s growing military power in the skies,...
Henry Knox on the British invasion of New York, 1776
When twenty-six-year-old Henry Knox, the Continental Army’s artillery commander, penned this letter to his wife, Lucy, on July 8, 1776, patriot morale was at a low point. The summer of 1776 was a particularly hard time as word of...
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...
The Cold War: Discussing the Speech of President Kennedy in 1963
Introduction The Cold War is the term for the rivalry between the two blocs of contending states that emerged following the Second World War. It was a series of confrontations played out on the world stage between the non-Communist...
The Civil War and early submarine warfare, 1863
Civil War combat foreshadowed modern warfare with the introduction of the machine gun, repeater rifles, and trench warfare, and the use of trains to quickly move troops. However, one of the most celebrated tactical innovations of the...
Sergeant Francis Fletcher of the 54th Massachusetts on equal pay for Black soldiers, 1864
Francis H. Fletcher, a 22-year-old clerk from Salem, Massachusetts, enlisted as a private in Company A of the 54th Massachusetts Infantry Regiment on February 13, 1863. One year after the regiment left Boston with great fanfare,...
George Washington and the Newburgh Conspiracy, 1783
In March of 1783, George Washington faced a serious threat to his authority and to the civil government of the new nation. The Continental Army, based in Newburgh, New York, was awaiting word of peace negotiations between Great...
A soldier’s reasons for enlisting, 1942
"Our country is the entire world and mankind our countrymen!!!" In April of 1942, Sidney Diamond, a chemical engineering student at City College in New York, enlisted in the United States Army against the wishes of his friends and...
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...
Union soldier turns medic at Gettysburg, 1863
After three days of fierce fighting on July 1–3, 1863, nearly 40,000 battered soldiers lay scattered across the blood-soaked fields of Gettysburg, Pennsylvania. As the torrential summer rain poured down on the wounded, Private Elbert...
African American soldiers at the Battle of Fort Wagner, 1863
On July 18, 1863, on Morris Island near Charleston, South Carolina, the 54th Massachusetts Volunteer Infantry, a Union regiment of free African American men, began their assault on Fort Wagner, a Confederate stronghold. After the...
A secret agreement between pirate hunters, 1696
Maritime trade and exploration in the colonial era created an environment ripe for piracy. One of the most famous pirates in history, Captain William Kidd, was commissioned by William III of England in 1695 as a privateer to hunt and...
George Washington from Valley Forge on the urgent need for men and supplies, 1777
George Washington’s words in this letter represent a stirring plea for help at the darkest moment of the American Revolution. As few other documents do, this letter illustrates Valley Forge as an icon of American perseverance and...
Alexander Hamilton’s "gloomy" view of the American Revolution, 1780
By October 1780, in the midst of the American Revolution, Alexander Hamilton was discouraged by the apparent apathy of the American people and the ineffectuality of their elected representatives, as well as by the recent discovery of...
General Sherman on the "March to the Sea," 1865
In the fall of 1864, Gen. James H. Wilson took command of Gen. William T. Sherman’s cavalry. Sherman and Wilson met and discussed various operations in Sherman’s “March to the Sea” from Atlanta to Savannah, Georgia. Wilson’s...
Lucy Knox on the home front during the Revolutionary War, 1777
Like many others before and after her, Lucy Knox performed a continuous juggling act as a busy wife and mother. Born into an aristocratic family, she had the advantage of a good education. At the age of seventeen she was disowned by...
Robert E. Lee’s message to his troops before the Battle of Spotsylvania, 1864
Just after the devastating fighting in Virginia at the Battle of the Wilderness and prior to the Battle of Spotsylvania in 1864, Confederate General Robert E. Lee drafted this inspirational message to his troops on the back of a...
A former Confederate officer on slavery and the Civil War, 1907
How can a soldier be proud of the country he defends while at the same time opposed to the cause he is fighting for? John S. Mosby, the renowned Confederate partisan leader, dealt with this moral dilemma years after the Civil War...
Aaron Burr, fugitive and traitor, 1804
On July 11, 1804, Vice President Aaron Burr shot former Secretary of the Treasury Alexander Hamilton in a duel in Weehawken, New Jersey. Nine days later he wrote this cryptic letter (partially in cipher) to his son-in-law, Joseph...
The surrender of Robert E. Lee, 1865
Left with no route of escape after the fall of Petersburg, Virginia, on April 2, 1865, Confederate General Robert E. Lee was faced with a difficult choice: keep fighting in an increasingly hopeless war or surrender to Ulysses S. Grant...
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