Francis Scott Key in the context of "Star-Spangled Banner (flag)"

Baltimore is the most populous city in the U.S. state of Maryland. It is the 30th-most populous U.S. city with a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, while the Baltimore metropolitan area at 2.86 million residents is the 22nd-largest metropolitan area in the nation. The city is also part of the Washington–Baltimore combined statistical area, which had a population of 9.97 million in 2020. Baltimore was designated as an independent city by the Constitution of Maryland in 1851. Though not located under the jurisdiction of any county in the state, it forms part of the Central Maryland region together with the surrounding county that shares its name.

The land that is present-day Baltimore was once used as hunting ground by Paleo-Indians. In the early 1600s, the Susquehannock began to hunt there. People from the Province of Maryland established the Port of Baltimore in 1706 to support the tobacco trade with Europe and established the Town of Baltimore in 1729. During the American Revolutionary War, the Second Continental Congress briefly moved its deliberations to the Henry Fite House from December 1776 to February 1777 prior to the capture of Philadelphia to British troops, which permitted Baltimore to serve briefly as the nation's capital before it returned to Philadelphia. The Battle of Baltimore was pivotal during the War of 1812, culminating in the British bombardment of Fort McHenry, during which Francis Scott Key wrote a poem that became "The Star-Spangled Banner", which was designated as the national anthem in 1931. During the Pratt Street Riot of 1861, the city was the site of some of the earliest violence associated with the American Civil War.

"The Star-Spangled Banner" is the national anthem of the United States. The lyrics come from the "Defence of Fort M'Henry", a poem written by American lawyer Francis Scott Key on September 14, 1814, after he witnessed the bombardment of Fort McHenry by the British Royal Navy during the Battle of Baltimore in the War of 1812. Key was inspired by the large U.S. flag, with 15 stars and 15 stripes, known as the Star-Spangled Banner, flying triumphantly above the fort after the battle.

The poem was set to the music of a popular British song written by John Stafford Smith for the Anacreontic Society, a social club in London. Smith's song, "To Anacreon in Heaven" (or "The Anacreontic Song"), with various lyrics, was already popular in the United States. This setting, renamed "The Star-Spangled Banner", soon became a popular patriotic song. With a range of 19 semitones, it is known for being very difficult to sing, in part because the melody sung today is the soprano part. Although the poem has four stanzas, typically only the first is performed with the other three being rarely sung.

"The Anacreontic Song", also known by its incipit "To Anacreon in Heaven", was the official song of the Anacreontic Society, an 18th-century gentlemen's club of amateur musicians in London. Composed by John Stafford Smith, the tune was later used by several writers as a setting for their patriotic lyrics. These included two songs by Francis Scott Key, most famously his poem "Defence of Fort McHenry". The combination of Key's poem and Smith's composition became known as "The Star-Spangled Banner", which was adopted as the official national anthem of the United States of America in 1931.

Baltimore, also known as Baltimore City, is the most populous city in the U.S. state of Maryland. It is the 30th-most populous U.S. city with a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, while the Baltimore metropolitan area at 2.86 million residents is the 22nd-largest metropolitan area in the nation. The city is also part of the Washington–Baltimore combined statistical area, which had a population of 9.97 million in 2020. Baltimore was designated as an independent city by the Constitution of Maryland in 1851. Though not located under the jurisdiction of any county in the state, it forms part of the Central Maryland region together with the surrounding county that shares its name.

The land that is present-day Baltimore was once used as hunting ground by Paleo-Indians. In the early 1600s, the Susquehannock began to hunt there. People from the Province of Maryland established the Port of Baltimore in 1706 to support the tobacco trade with Europe and established the Town of Baltimore in 1729. During the American Revolutionary War, the Second Continental Congress briefly moved its deliberations to the Henry Fite House from December 1776 to February 1777 prior to the capture of Philadelphia to British troops, which permitted Baltimore to serve briefly as the nation's capital before it returned to Philadelphia. The Battle of Baltimore was pivotal during the War of 1812, culminating in the British bombardment of Fort McHenry, during which Francis Scott Key wrote a poem that became "The Star-Spangled Banner", which was designated as the national anthem in 1931. During the Pratt Street Riot of 1861, the city was the site of some of the earliest violence associated with the American Civil War.

The Francis Scott Key Bridge, more commonly known as the Key Bridge, is a six-lane reinforced concrete arch bridge carrying U.S. Route 29 (US 29) across the Potomac River between the Rosslyn neighborhood of Arlington County, Virginia, and the Georgetown neighborhood of Washington, D.C. Completed in 1923, it is Washington's oldest surviving road bridge across the Potomac River.

Key Bridge was named for the poet Francis Scott Key, who wrote the words of the American national anthem "The Star-Spangled Banner". It was added to the National Register of Historic Places in 1996.