| Event | U.S. President |
|---|
| Treaty of Guadalupe Hidalgo | |
| Treaty of Portsmouth | |
| Interstate Commerce Commission | |
| Civil Rights Act | |
| Annexation of the Republic of Texas | |
| Tariff of 1828 | |
| Closing of Guantanamo Bay detention camp ordered | |
| Second president to be assassinated | |
| La Amistad | |
| Teapot Dome scandal | |
| Dred Scott Decision | |
| The Korean War began | |
| John Hinckley, Jr. assassination attempt | |
| Cuban Missile Crisis | |
| Iran hostage crisis | |
| Lewinsky scandal | |
| First U.S. President to be impeached | |
| Dingley Act | |
| Women granted the right to vote | |
| Sherman Antitrust Act | |
| Richard Nixon pardoned | |
| 16th Amendment was ratified | |
