Historical Research Library
Discover the people, events, and key documents that shaped the Founding Era.
Explore our Resources
Filter by person, event, document, and theme.
Declaration of Independence, 1776
The founding document that asserted colonial autonomy, enumerated grievances, and set forth the ideals of a new nation
Supporting Document
Abigail Adams to John Adams: “Remember the Ladies,” 1776
A letter detailing news from home and urging improved governance
Supporting Document
“Liberty Further Extended,” 1776
After the adoption of the Declaration of Independence, Lemuel Haynes wrote an essay, probably with the intention of publishing it, entitled “Liberty Further Extended: Or Free Thoughts on the Illegality of Slave-Keeping.” In this essay, Haynes argued that “all men are created equal” meant all men no matter the color of their skin.
Supporting Document
![Map of Massachusetts, Carl Ernst Bohn, [1796?] (Library of Congress)](/sites/default/files/styles/research_thumbnail/public/2023-10/ct003478_locMA.png.webp?itok=FBmpMxIz)
Petition for Freedom to the Massachusetts Legislature, 1777
Black petitioners calling on Massachusetts to end slavery
Supporting Document
Winter at Valley Forge, 1777–1778
The Continental Army faced extreme hardships at Valley Forge during the harsh winter of 1777–1778—strengthening their resilience and unity
Event
George Washington on the Suffering of the Soldiers, 1777
A report to Congress highlighting the hardships at Valley Forge and the urgent need for supplies
Supporting Document
George Washington Sends an Urgent Request for Supplies, 1777
A letter circulated to all the states describing the harsh conditions at Valley Forge and the suffering of the American troops
Supporting Document
Henry Knox on the Battle of Princeton, 1777
A letter recounting how recent battles buoyed American morale
Supporting Document
Lucy Knox to Henry Knox on Life on the Home Front, 1777
A letter expressing concern about the divisive atmosphere and hardships faced on the home front
Supporting Document
Lucy Knox to Henry Knox on Smallpox, 1777
A letter discussing Lucy’s decision to have herself and her infant inoculated against smallpox
Supporting Document
Patrick Henry on Military and Financial Matters, 1777
Letter to a co-signer of the Declaration of Independence on financial, legislative, and military concerns
Supporting Document
Lucy Knox’s Love Letter to Henry Knox, 1777
Lucy Knox spent much of her early married life alone, as her husband Henry rose through the ranks of the Continental Army. In this letter, the twenty-one-year-old Lucy expressed her unwavering love for Henry, but described her loneliness and desire to know what the future would hold.
Supporting Document