| A | B |
|---|
| 1788 | US Constitution was ratified |
| 1789 | Washington takes the oath of office to become president |
| 1791 | Bill of Rights is ratified |
| 1792 | Louis XVI, king of France, was convicted by the Convention and sentenced to death for treason. |
| 1798 | Due to fighting between President Adams and Vice President Jefferson, the twelfth amendment is proposed |
| 1800 | Napoleon, who was at this time the first consul of France, agreed to a treaty of peace |
| 1803 | President Thomas Jefferson recommends that the United States purchase the entire Louisiana Territory from Emperor Napoleon |
| 1805 | The Lewis and Clark Expedition otherwise known as the Corp. of Discovery discovers the Continental Divide |
| 1812 | Tensions grow so tight between the US and Brittan that the Second War for Independence breaks out. broke out. |
| 1814 | The White House is burned; Dolly Madison saves President Washington's portrait. |
| December, 1814 | Treaty of Ghent is signed. |
| 1823 | The Monroe Doctrine is announced. |
| 1828 | Andrew Jackson becomes the "People's President" and the Democratic Party is born. |
| 1841 | The United States government passed the Preemption Act, which allowed squatters to purchase the land for $1.25 an acre. |
| 1840 | Potato famine in Ireland causes thousand to emigrate to the US |
| 1845 | Texas is annexed by the United States |
| 1846 | The United States goes to war with Mexico |
| 1847 | The Mormons reach the Great Salt Lake |
| 1848 | The treaty of Guadeloupe Hidalgo ceded the Southwest to the United States the same year that gold is discovered in California |
| 1853 | The tip of what is now Arizona was purchased from Mexico by James Gladsen to provide the right of way for the railroad. |
