* The Constitutional Convention meets in Philadelphia to draft the United States Constitution.
* George Washington is elected as the first President of the United States.
* The Bill of Rights is adopted.
1791
* The District of Columbia is established as the permanent capital of the United States.
* The first United States Mint is established in Philadelphia.
* The Bank of the United States is established in Philadelphia.
1812
* The War of 1812 begins between the United States and Great Britain.
* The British invade Washington, D.C., and burn the White House and other government buildings.
1846
* The Mexican-American War begins.
* The United States annexes the Republic of Texas.
1861
* The American Civil War begins.
* Abraham Lincoln is inaugurated as the 16th President of the United States.
1863
* The Emancipation Proclamation is issued, freeing all slaves in the Confederate states.
* The Battle of Gettysburg is fought, turning the tide of the Civil War in favor of the Union.
1865
* The American Civil War ends.
* Abraham Lincoln is assassinated.
1876
* The Centennial Exposition is held in Philadelphia to celebrate the 100th anniversary of the signing of the Declaration of Independence.
1898
* The Spanish-American War begins.
* The United States annexes Hawaii and Puerto Rico.
1900
* The population of the United States reaches 76,212,168.
* The United States becomes a world power.