Delaware’s Revolutionary Timeline
Trace Delaware’s journey through the American Revolution with this interactive timeline, highlighting key events that shaped both the state and the emerging nation. From early acts of rebellion and critical battles to Delaware’s bold decision to separate from both Pennsylvania and British rule, follow along as local milestones are woven into the broader fabric of America’s fight for independence. Discover how the First State helped lay the foundation for a new republic.
1775
Battles of Lexington and Concord (Massachusetts)
April 19
The first shots of the American Revolutionary War are fired. American militiamen resist British troops in Massachusetts, marking the outbreak of open rebellion.
1776
Troops Stationed at Lewes Lighthouse (Delaware)
April 5
Militia are posted at the Lewes lighthouse to guard Delaware’s coast from British naval threats.
1776
Fort Christina Rebuilt (Wilmington, Delaware)
April
Delaware’s historic Swedish fort is reconstructed to support regional defense efforts near the Delaware River.
1776
Skirmish with British Vessels (Near Wilmington, Delaware)
May 8-9
Two British ships engage with Delaware defenders near Wilmington. The ships are ultimately forced to withdraw after a brief confrontation.
1776
“Black Monday” Loyalist Insurrection (Dover, Delaware)
June 10
A Loyalist uprising in Dover is quickly suppressed by Delaware patriots, revealing lingering divisions within the colony.
1776
Delaware Declares Independence
June 15
Delaware formally separates from both Pennsylvania and Great Britain, establishing its own independent government—two weeks before the Declaration of Independence is adopted.
1776
Delaware Militia Joins Flying Camp (Perth Amboy, New Jersey)
Summer
Delaware militia under Colonel William Patterson reinforce the mobile reserve force defending the mid-Atlantic colonies.
1776
Declaration of Independence Adopted
July 4
The Continental Congress approves the Declaration of Independence in Philadelphia, marking a bold new chapter for the colonies.
1776
Delaware Delegates Sign the Declaration
August 2
Caesar Rodney, George Read, and Thomas McKean officially sign the Declaration of Independence.
1776
Battle of Long Island (New York)
August 25
Delaware’s 1st Regiment, under Colonel John Haslet, fights valiantly in one of the war’s earliest large-scale battles.
1776
Battle of White Plains (New York)
September
The 1st Delaware Regiment participates in continued resistance as British forces press deeper into New York.
1776
First Battle of Trenton (New Jersey)
December 26
Delaware troops support Washington’s daring Christmas-night crossing and help secure a morale-boosting victory over Hessian forces.
1777
Second Battle of Trenton (New Jersey)
January 2
Delaware soldiers help hold a defensive line at Assunpink Creek, delaying British advances.
1777
Battle of Princeton (New Jersey)
January 3
Delaware troops under Major Thomas Duff, along with remnants of the 1st Regiment, fight in this key American victory. Colonel John Haslet is killed, a major loss for Delaware.
1777
British Troops Land at Elk Neck (Maryland)
August 25
General William Howe lands with 15,000 troops just south of the Delaware border, launching a campaign to capture Philadelphia.
1777
Delaware Militia Mobilized at Noxontown (Delaware)
August 25
President John McKinly instructs General Caesar Rodney to muster state militia at Noxontown (modern Townsend) in response to the British landing.
1777
British Detachment Threatens Middletown
August 28
A British column crosses the Elk River, threatens Middletown, and encamps near Summit (modern Summit Bridge).
1777
Washington Leads Army Through Wilmington
August 28
General George Washington marches his troops through Wilmington and sets up a defensive line along Red Clay Creek near Newport.
1777
Rodney Relocates Headquarters
September 2-9
General Rodney shifts his militia headquarters from Noxontown to Middletown and back again as troop movements intensify.
1777
Battle of Cooch’s Bridge (Delaware)
September 3
American forces clash with the British in Delaware’s only Revolutionary War battle, near Newark. Though a minor defeat, the engagement delays the enemy.
1777
Council of War at Hale-Byrnes House (Stanton, Delaware)
September 6
Washington and his generals meet at the Hale-Byrnes House to plan defenses ahead of the pivotal Brandywine battle.
1777
Battle of Brandywine (Pennsylvania)
September 11
Delaware troops fight alongside Continental forces in one of the war’s largest battles. Despite a loss, they help slow the British march toward Philadelphia.
1777
Encampment at Valley Forge (Pennsylvania)
December 19
Delaware soldiers settle into winter quarters with Washington’s army. The grueling conditions forge a stronger, more disciplined force.
1778
Battle of Monmouth (New Jersey)
June 28
Delaware troops participate in this intense and sweltering battle. Their disciplined performance reflects the training and resilience gained at Valley Forge.
1781
Surrender at Yorktown (Virginia)
October 19
British General Cornwallis surrenders to Washington at Yorktown. Delaware soldiers are present at the siege that ends major fighting in the Revolutionary War.
1787
Delaware Becomes the First State
December 7
Delaware becomes the first state to ratify the U.S. Constitution, cementing its legacy as the First State in the new republic.
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