| Term | Definition |
| 1846-1848 | Mexican American War |
| 1845-1848 | Irish potato famine in Ireland many immigrate to the U.S |
| 1838 | 13,000-17,000 Cherokee Indian forced to march in Trail of Tears |
| 1821 | Mexico wins its independence from Spain |
| 1837-1901 | Victoria rules as Queen of England |
| 1844 | Samuel Morse sends famous telegraph message |
| 1836 | Charles Darwin visits Australia |
| 1853-1854 | Commodore Perry negotiates trading agreements with Japan, ending its isolation |
| 1860 | Garibaldi takes Sicily & Naples |
| 1854 | Florence Nightingale organizes an army hospital at Scutari |
| 1869 | Transcontinental Railroad is completed |
| 1863 | Battle of Gettysburg |
| 1819 | Grand Columbia is formed and Simon Bolivar is made President |
| 1812 | The United States declares war on Britain |
| 1789 | The French Revolution begins with the storming of the Bastille in Paris |
| 1803 | Napoleon sells the Louisiana Territory to the United States |
| 1815 | The "Hundred Days" are ended by the Battle of Waterloo |
| 1801 | John Marshall becomes Chief Justice of the Supreme Court |
| 1869 | The Suez Canal is completed |
| 1871 | The Great Chicago fire |
| 1879 | Thomas Edison invents the light bulb |
| 1884-1885 | Berlin Conference regulates European colonialism in Africa |
| 1881 | Booker T. Washington helps found the Tuskegee Institute |
| 1892 | First immigrants arrive on Ellis Island, beginning the mass immigration of the 20th century |
| 1896 | William Jennings Bryan's famous "Cross of Gold" speech wins him support from Populists |