| Term | Definition |
| 1815 | End of Napoleonic Wars |
| 1830 | Revolution |
| 1832 | First Great Reform Act |
| 1848 | Revolution |
| 1870 | Franco-Prussian War |
| 1870 | FInal Unification of Italy |
| 1871 | Final Unification of Germany |
| 1914 | Beginning of WWI |
| 1917 | Russian Revolution |
| 1918 | End of WWI |
| 1929 | Beginning of Great Depression |
| 1933 | Hitler Comes to Power |
| 1939 | Beginning of WWII |
| 1945 | End of WWII |
| 1949 | Ky Year in Cold War |
| 1949 | Soviet Atomic Bomb |
| 1949 | Chinese Communist Revolution |
| 1949 | NATO est. |
| 1949 | West Germany est. |
| 1960's | Youth Revolt |
| 1970's | Detente |
| 1973 | OPEC Oil Embargo |
| 1973 | start of 1970's Depression |
| 1980's | Conservative Turn |
| 1989 | Fall of Berlin Wall |
| 1989 | Collaps of Soviet Bloc |