18 Jun 1812: War of 1812 begins The United States declared war on Great Britain over maritime rights and British support for Native American tribes.
16 Aug 1812: Surrender of Detroit American forces surrendered Detroit to the British, a major early defeat in the War of 1812.
2
1814
24 Aug 1814: Burning of Washington British troops captured and burned Washington, D.C., including the White House and the Capitol.
13 Sep 1814: Battle of Fort McHenry American forces at Fort McHenry successfully defended Baltimore from a British naval attack, inspiring Francis Scott Key to write "The Star-Spangled Banner."
24 Dec 1814: Treaty of Ghent The Treaty of Ghent was signed, officially ending the War of 1812.
3
1815
8 Jan 1815: Battle of New Orleans General Andrew Jackson defeated the British in the final major battle of the War of 1812, fought after the peace treaty had been signed.
4
1817
4 Mar 1817: James Monroe inaugurated James Monroe was sworn in as the fifth President of the United States.
10 Dec 1817: Mississippi becomes 20th state Mississippi was admitted to the Union.