Question: Which American Revolutionary War did  Bennington Battle Day  commemorate in America 
Context: Bennington Township (formerly called Andover Township) is a township in Mower County, Minnesota, United States.  The population was 178 at the 2000 census.  All areas and population centers of the township are unincorporated areas.  It was named for Bennington, Vermont, the site of a battle in the American Revolutionary War (the Battle of Bennington). Nathan Hale (September 23, 1743 – September 23, 1780) was an American Revolutionary War Officer.  He was born in Hampstead, New Hampshire, son of Moses and Elizabeth (Wheeler) Hale.  In his teens he moved with his family to Rindge, New Hampshire.  He married Abigail Grout, daughter of Col. John and Joanna (Boynton) Grout of Lunenberg, Mass."At the organization of the town of Rindge in 1768, Nathan was chosen the first constable of the town.  He was moderator of the annual town meetings in 1773, 1774 and 1775.  As early as 1774 he was captain of a company of 'minutemen' and on the alarm of the battle of Lexington, 19 April 1775, he led his company at once to the field.  Four day after he was commissioned major in Col James Reeds regiment, and thenceforward continued in active service until his capture."  Hale participated in the American Revolutionary War and fought in the Battle of Lexington and Concord, Battle of Bunker Hill Siege of Fort Ticonderoga, and Battle of Hubbardton.  Hale was taken prisoner by the British.  He died on September 23, 1780 at the hands of the British at New Utrecht, LI, New York. The Bennington Battle Monument is a 301 or stone obelisk located at 15 Monument Circle, in Bennington, Vermont, United States.  The monument commemorates the Battle of Bennington during the American Revolutionary War. The Battle of Bennington was a battle of the American Revolutionary War, part of the Saratoga campaign, that took place on August 16, 1777, in Walloomsac, New York, about 10 mi from its namesake Bennington, Vermont.  A rebel force of 2,000 men, primarily composed of New Hampshire and Massachusetts militiamen, led by General John Stark, and reinforced by Vermont militiamen led by Colonel Seth Warner and members of the Green Mountain Boys, decisively defeated a detachment of General John Burgoyne's army led by Lieutenant Colonel Friedrich Baum, and supported by additional men under Lieutenant Colonel Heinrich von Breymann. The Battle of Hubbardton was an engagement in the Saratoga campaign of the American Revolutionary War fought in the village of Hubbardton, Vermont.  Vermont was then a disputed territory sometimes called the New Hampshire Grants, claimed by New York, New Hampshire, and the newly organized and not yet recognized but de facto independent government of Vermont.  On the morning of July 7, 1777, British forces, under General Simon Fraser, caught up with the American rear guard of the forces retreating after the withdrawal from Fort Ticonderoga.  It was the only battle in Vermont during the revolution.  (The Battle of Bennington was fought in what is now Walloomsac, New York.) Newtown Battlefield State Park, formerly known as Newtown Battlefield Reservation, was the site of the Battle of Newtown fought in August 1779, during the American Revolutionary War.  It was the only major battle of the Sullivan Expedition, an armed offensive led by General John Sullivan that was ordered by the Continental Congress to end the threat of the Iroquois who had sided with the British in the American Revolutionary War.  In the battle, the Iroquois were defeated decisively.  The site is today managed as a 372 acre state park. USS "Bennington" (Gunboat No. 4/PG-43) was a member of the "Yorktown" class of steel-hulled, twin-screw gunboats in the United States Navy in the late 19th and early 20th centuries.  She was the first U.S. Navy ship named in honor of the town of Bennington, Vermont, site of the Battle of Bennington in the American Revolutionary War. Historic Camden Revolutionary War Site, is a national historic district and open-air museum located in Camden, Kershaw County, South Carolina.  Roughly 40 minutes away from Columbia, South Carolina the state capitol it is one of the states largest tourist attractions.  The 107-acre site is also known as Historic Camden Revolutionary War Restoration and as the British Revolutionary War Fortifications.  Camden contains preserved structures and grounds that are representative of the Southern theater of the American Revolutionary War.  The site is managed by a consortium of private donors and local governments, the area is also an affiliated unit of the National Park Service. USS "Bennington" (CV/CVA/CVS-20) was one of 24 "Essex"-class aircraft carrier s built during World War II for the United States Navy.  The ship was the second US Navy ship to bear the name, and was named for the Revolutionary War Battle of Bennington (Vermont).  "Bennington" was commissioned in August 1944, and served in several of the later campaigns in the Pacific Theater of Operations, earning three battle stars. Decommissioned shortly after the end of the war, she was modernized and recommissioned in the early 1950s as an attack carrier (CVA), and then eventually became an Antisubmarine Aircraft Carrier (CVS).  In her second career, she spent most of her time in the Pacific, earning five battle stars for action during the Vietnam War.  She served as the recovery ship for the Apollo 4 space mission. Bennington Battle Day is a state holiday unique to Vermont, commemorating the American victory over British forces at the Battle of Bennington during the American Revolutionary War in 1777.  The holiday's date is fixed, occurring on August 16 every year.
Answer: The Battle of Bennington