Historical Research Library Discover the people, events, and key documents that shaped the Founding Era.
Boston Massacre, 1770 A “massacre” of civilians in Boston by British troops fueled colonial resentment of British rule Event
Phillis Wheatley’s Poem on Tyranny and Slavery, 1772 An eloquent condemnation of oppression and slavery, written for the British secretary of state for the colonies, showcasing Wheatley’s literary talent, and advocacy for freedom Key Document
First Continental Congress, 1774 A gathering of American colonial delegates in Philadelphia to address grievances against British rule and advocate for colonial rights Event
Declaration of the Causes and Necessity for Taking Up Arms, 1775 An address listing the colonists’ grievances and asserting the right to self-defense Key Document
Battles of Lexington and Concord, 1775 The first military engagements of the American Revolutionary War in 1775—marked by confrontations between colonial militia and British troops Event
New York and New Jersey Campaigns, 1776 A series of Revolutionary War military actions in which British forces gained control over New York and New Jersey Event
Declaration of Independence, 1776 The founding document that asserted colonial autonomy, enumerated grievances, and set forth the ideals of a new nation Key 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
Articles of Confederation Ratified, 1781 The first attempt at establishing the relationship—a “firm league of friendship”—between the thirteen colonies Key Document
Battle of Yorktown, 1781 A decisive victory of American and French forces that led to British surrender and American independence Event
James Madison’s Memorial and Remonstrance against Religious Assessments, 1785 An argument against state-sponsored religion, defending religious freedom and the separation of church and state Key Document
Founding the New-York Manumission Society, 1785 Establishing an organization to advocate gradual abolition of slavery, educate free Black people, and prevent them from being sold into slavery Event