1777 in the United States
Events from the year 1777 in the United States.
- January 2 – American Revolutionary War: Battle of the Assunpink Creek, also known as the Second Battle of Trenton: American forces under the command of George Washington repulse a British attack near Trenton, New Jersey.
- January 3 – American Revolutionary War: Battle of Princeton: American general George Washington defeats British general Charles Cornwallis.
- January 12 – Mission Santa Clara de Asís founded in what is now Santa Clara, California.
- January 15 – Vermont declares its independence from New York, becoming the Vermont Republic, an independent country, a status it retains until it joins the United States as the 14th state in 1791.
- January 20 – American Revolutionary War: Battle of Millstone
- April 13 – American Revolutionary War: Battle of Bound Brook: A British and Hessian force led by Lieutenant General Charles Cornwallis surprises a Continental Army outpost in New Jersey commanded by Major General Benjamin Lincoln.
- April 26 – American Revolutionary War: 16-year-old Sybil Ludington rides 40 miles through the night to warn militiamen under the control of her father Henry that British troops are planning to invade Danbury, Connecticut.
- April 27 – American Revolutionary War: The Battle of Ridgefield: A British invasion force engages and defeats Continental Army regulars and militia irregulars at Ridgefield, Connecticut.
- May 16 – Lachlan McIntosh and Button Gwinnett shoot each other during a duel near Savannah, Georgia. Gwinnett, a signer of the United States Declaration of Independence, dies three days later.
- May 17 – American Revolutionary War: Battle of Thomas Creek.
- May 23 – American Revolutionary War: Meigs Raid.
- June 13 – American Revolution: The Marquis de Lafayette lands near Charleston, South Carolina to help the Continental Congress train its army.
- June 14 – The Stars and Stripes is adopted by the Continental Congress as the flag of the United States.
- June 26 – American Revolutionary War: Battle of Short Hills.
- July 6 – American Revolutionary War: Siege of Fort Ticonderoga – After a bombardment by British artillery under General John Burgoyne, American forces retreat from Fort Ticonderoga, New York.
- July 7 – American Revolutionary War: Battle of Hubbardton – British forces engage American troops retreating from Fort Ticonderoga.
- July 8
- July 31 – The U.S. Second Continental Congress passes a resolution that the services of Marquis de Lafayette "be accepted, and that, in consideration of his zeal, illustrious family and connexions, he have the rank and commission of major-general of the United States."
- August 2–23 – American Revolutionary War: Siege of Fort Stanwix.
- August 6 – American Revolutionary War: Battle of Oriskany – Loyalists gain a tactical victory over Patriots; Iroquois fight on both sides.
- August 13–14 – American Revolutionary War: Battle of Machias.
- August 16 – American Revolutionary War: Battle of Bennington – British forces are defeated by American troops.
- August 22 – American Revolutionary War: Battle of Staten Island.
- September – American Revolutionary War: Siege of Fort Henry.
- September 3 – American Revolutionary War: Battle of Cooch's Bridge – In a minor skirmish in New Castle County, Delaware, the flag of the United States was flown in battle for the first time.
- September 11 – American Revolutionary War – Battle of Brandywine: The British gain a major victory in Chester County, Pennsylvania.
- September 16 – American Revolutionary War: Battle of the Clouds.
- September 19 – American Revolutionary War: First Battle of Saratoga: Battle of Freeman's Farm – Patriot forces withstand a British attack at Saratoga, New York.
- September 21 – American Revolutionary War: Battle of Paoli.
- September 26 – American Revolutionary War: British troops occupy Philadelphia.
- September 27 – Lancaster, Pennsylvania is the capital of the United States for one day.
- October 4 – American Revolution – Battle of Germantown: Troops under George Washington are repelled by British troops under Sir William Howe.
- October 5-November 25 – American Revolutionary War: Battle of Red Bank.
- October 6 – American Revolutionary War: Battle of Forts Clinton and Montgomery: British troops capture Fort Clinton and Fort Montgomery (Hudson River) and are able to dismantle the Hudson River Chain.
- October 7 – American Revolution – Second Battle of Saratoga: Battle of Bemis Heights: British General John Burgoyne is defeated by American troops.
- October 17 – American Revolution – Battle of Saratoga: British General John Burgoyne surrenders to the American troops.
- November 15 – American Revolution: After 16 months of debate, the Continental Congress approves the Articles of Confederation in the temporary American capital at York, Pennsylvania.
- November 17 – The Articles of Confederation are submitted to the states for ratification.
- November 25 – American Revolutionary War: Battle of Gloucester
- November 29 – San Jose, California is founded. It is the first pueblo in Spanish Alta California.
- December 5–8 – American Revolutionary War: Battle of White Marsh
- December 11 – American Revolutionary War: Battle of Matson's Ford
- December 18 – The United States celebrates its first Thanksgiving as a nation, marking the victory by the Americans over General John Burgoyne in the Battle of Saratoga in October.
- December 19 – American Revolution: George Washington's Continental Army goes into winter quarters at Valley Forge, Pennsylvania.
- American Revolutionary War (1775–1783)
- October 14 1777 – Jojo Nava, explorer nature lover (died; 1875)
- January 1 – Micah Hawkins, music theater composer (died 1825)
- March 17 – Roger Brooke Taney, politician, lawyer and judge (died 1864)
- April 12 – Henry Clay, U.S. Senator from Kentucky 1806-1807, 1810-1811, 1831-1842 & 1849-1852 (died 1852)
- June 12 – Robert Clark, politician (died 1837)
- June 23 – Frederick Bates, politician (died 1825)
- July – Thomas Clayton, U.S. Senator from Delaware 1824-1827 & 1837-1847 (died 1854)
- August 12 – George Wolf, politician (died 1840)
- October 16
- November 14 – Nathaniel Claiborne, politician (died 1859)
- November 24 – Samuel Butts, militia officer (killed in action 1814)
- December 10 – William Conner, trader and politician (died 1855)
- Date unknown
- January 3 – William Leslie, British Army captain, killed at Battle of Princeton (born 1751 in Scotland)
- January 12 – Hugh Mercer, Continental Army brigadier general and physician, mortally wounded at Battle of Princeton (born 1726 in Scotland)
- February 9 – Seth Pomeroy, gunsmith and soldier (born 1706)
- May 19 – Button Gwinnett, signatory of the Declaration of Independence, 2nd Governor of Georgia in 1777 (born 1735 in Great Britain)
- September 22 – John Bartram, botanist, horticulturalist and explorer (born 1699)
- October 4 – Francis Nash, Continental Army brigadier general, mortally wounded at Battle of Germantown (born c.1742)
- October 7 – Simon Fraser, British Army general, killed in Battle of Bemis Heights (born 1729 in Scotland)
- November 10 – Cornstalk (Hokoleskwa), Shawnee chief, murdered (born c.1720)
- Media related to 1777 in the United States at Wikimedia Commons