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

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 <SEP>  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. 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 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). <SEP> 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. <SEP> 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 designated a national park in 1925, and in 1939 was redesignated a "National Monument and Historic Shrine".  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.