Question: What fort was built in 1798 and commemorated at the Battle Monument in Baltimore, Maryland?

Context paragraphs:
Seal of Baltimore: The Seal of Baltimore is the official government emblem of the city of Baltimore, Maryland.  The current City Seal was adopted for use in 1827, possibly inspired by a famous speech and toast made by sixth President John Quincy Adams (1767-1848) / [served 1825-1829], on a visit and tour in 1827, in which he dubbed the city with its most well-known nickname of "The Monumental City", with the recent erection of several monuments, including this for the War of 1812 and the new Washington Monument column, nearing completion in a wooded park, just north of the booming city.  The seal is in the shape of an ellipse with the image of the Battle Monument featured in its center

Gloucester Valley Battle Monument: The Gloucester Valley Battle Monument (Korean: 파주 영국군 설마리전투비 , literally "British Army's Seolmari Battle Monument in Paju") is a memorial in South Korea that commemorates the actions of the Gloucestershire Regiment during the Battle of the Imjin River in 1951.

Battle Monument: The Battle Monument, located in Battle Monument Square on North Calvert Street between East Fayette and East Lexington Streets in Baltimore, Maryland, commemorates the Battle of Baltimore with the British fleet of the Royal Navy's bombardment of Fort McHenry, the Battle of North Point, southeast of the city in Baltimore County on the Patapsco Neck peninsula, and the stand-off on the eastern siege fortifications along Loudenschlager and Potter's Hills, later called Hampstead Hill, in what is now Patterson Park since 1827, east of town.  It honors those who died during the month of September 1814 during the War of 1812.  The monument lies in the middle of the street and is between the two Baltimore City Circuit Courthouses that are located on the opposite sides of North Calvert Street.  It was sponsored by the City and the "Committee of Vigilance and Safety" led by Mayor Edward Johnson and military commanders: Brig. Gen. John Stricker, Maj. Gen. Samuel Smith and Lt. Col. George Armistead (of Ft. McHenry).

Great Baltimore Fire: The Great Baltimore Fire raged in Baltimore, Maryland, United States on Sunday, February 7 and Monday, February 8, 1904.  1,231 firefighters helped bring the blaze under control, both professional paid Truck and Engine companies from the Baltimore City Fire Department (B.C.F.D.) and volunteers from the surrounding counties and outlying towns of Maryland, as well as out-of-state units that arrived on the major railroads.  It destroyed much of central Baltimore, including over 1,500 buildings covering an area of some 140 acre .  From North Howard Street in the west and southwest, the flames spread north through the retail shopping area as far as Fayette Street and began moving eastward, pushed along by the prevailing winds.  Narrowly missing the new 1900 Circuit Courthouse (now Clarence M. Mitchell, Jr.  Courthouse), fire passed the historic Battle Monument Square from 1815-27 at North Calvert Street, and the quarter-century old Baltimore City Hall (of 1875) on Holliday Street; and finally spread further east to the Jones Falls stream which divided the downtown business district from the old East Baltimore tightly-packed residential neighborhoods of Jonestown (also known as Old Town) and newly named "Little Italy".  The fire's wide swath burned as far south as the wharves and piers lining the north side of the old "Basin" (today's "Inner Harbor") of the Northwest Branch of the Baltimore Harbor and Patapsco River facing along Pratt Street.  It is considered historically the third worst conflagration in an American city, surpassed only by the Great Chicago Fire of 1871, and the San Francisco Earthquake and Fire of 1906.  Other major urban disasters that were comparable (but not fires) were the Galveston Hurricane of 1900 and most recently, Hurricane Katrina that hit New Orleans and the Gulf of Mexico coast in August 2005.

Fort McHenry: Fort McHenry, in Baltimore, Maryland, is a historical American coastal pentagonal bastion fort best known for its role in the War of 1812, when it successfully defended Baltimore Harbor from an attack by the British navy from the Chesapeake Bay September 13–14, 1814.  It was first built in 1798 and was used continuously by U.S. armed forces through World War I and by the Coast Guard in World War II.  It was designated a national park in 1925, and in 1939 was redesignated a "National Monument and Historic Shrine".

Baltimore bank riot: The Baltimore bank riot of 1835 in the major port city of Maryland was a violent reaction to the failure of the Bank of Maryland in 1834.  Thousands of citizens had lost millions of dollars in savings.  The riot, which lasted from 6–9 August, attacked the homes and property of a number of former directors of the bank, who had been accused of financial misconduct and fraud, as well as the federal district courthouse located on Battle Monument Square.  The Baltimore bank riot was one of the most violent and destructive events of civic unrest in any American city prior to the Civil War.

Baltimore City Circuit Courthouses: The Baltimore City Circuit Courthouses are state judicial facilities located in downtown Baltimore, Maryland.  They face each other in the 100 block of North Calvert Street, between East Lexington Street on the north and East Fayette Street on the south across the Battle Monument Square, which held the original site of the first courthouse for Baltimore County and Town.

Trenton Battle Monument: The Trenton Battle Monument is a massive column-type structure in the Battle Monument section of Trenton, Mercer County, New Jersey, United States.  It commemorates the December 26, 1776 Battle of Trenton, a pivotal victory for the Continental forces during the American Revolutionary War.

Battle Monument, Trenton, New Jersey: Battle Monument, also known as Five Points, is a neighborhood located within the city of Trenton in Mercer County, New Jersey, United States.  The name Battle Monument is in reference to the Trenton Battle Monument, which sits just south of the Five Points formed from the intersection of Pennington Avenue, Princeton Avenue, Brunswick Avenue, North Broad Street and North Warren Street.  The Philadelphia and Reading Railroad Freight Station is in the neighborhood.

Battle Monument (West Point): Battle Monument is a large Tuscan column monument located on Trophy Point at the United States Military Academy, West Point, NY.  Designed by Stanford White, it was dedicated on 30 May 1897 by surviving Civil War veterans.  The monument was financed by monthly contributions from the pay of the officers and soldiers of the regular army.  The granite column, standing 46 feet tall and 5 feet in diameter, is reputed to be the largest column of polished granite in the Western Hemisphere.  Inscribed on bronze straps belting the eight monumental "cannon balls" circling the column are the names of 2,230 Regular Army officers and soldiers who died for the Union during the Civil War.  Designed by Frederick MacMonnies, a female statue sits atop the monument, representing "fame".  The statue that now tops the monument is actually the second version of the statue.  Just months after it was unveiled, MacMonnies agreed to replace the original statue after complaints that it was too large and awkward.  Traditionally, the plebes at West Point made reference to the statue of Fame when giving the following reply to any upperclassman demanding to know "How are they all?" : "They are all fickle but one, sir."  "Who is the one?"  "She who stands atop Battle Monument, for she has been on the same shaft since 1897;" however, this is no longer current practice.

Supporting paragraphs: Battle Monument Fort McHenry
Answer: Fort McHenry