1818 in The United States - Events

Events

• March 15 – First Seminole War: Andrew Jackson leads an army into Spanish Florida.
• April – First Seminole War – Arbuthnot and Ambrister incident: Alexander George Arbuthnot and Robert Ambrister are captured by Andrew Jackson's forces and later executed for aiding the Spanish and the Seminoles.
• April 4 – The U.S. Congress adopts the flag of the United States as having 13 red and white stripes and one star for each state (20 stars) with additional stars to be added whenever a new state is added to the Union.
• April 7 – Brooks Brothers, the oldest men's clothier in the United States, opens its first store on the northeast corner of Catherine and Cherry Streets in New York City, where the South Street Seaport now stands.
• April 14 – United States Coast Survey operations suspended until August 9, 1832.
• May 23 – First Seminole War: Andrew Jackson's army enters Pensacola, Florida unopposed as the Spanish forces retreated to Fort Barrancas.
• May 28 – First Seminole War: Fort Barrancas surrenders to Andrew Jackson.
• August 1 – The Topographical Bureau of the US War Department is founded.
• October 18 – Andrew Jackson and Isaac Shelby negotiate the purchase of land in modern-day western Tennessee and southwestern Kentucky from the Chickasaw Nation in what is later called the Jackson Purchase.
• October 20 – The Treaty of 1818 between the U.S. and the United Kingdom establishes the northern boundary as the 49th parallel from the Lake of the Woods to the Rocky Mountains, also creating the Northwest Angle.
• December 3 – Illinois is admitted as the 21st U.S. state.