| Event | Decade (*0) | What was it? |
| Charles Manson and his 'family' kill | |
| Plane crashes in Hudson, all passengers survive | |
| Segregation ruled illegal in US | |
| The Great Depression | |
| Castro become dictator of Cuba | |
| Columbine massacre | |
| Saddam Hussein hanged | |
| Reagan assassination attempt | |
| Anne Frank goes into hiding | |
| Discovery of Penicillin | |
| Berlin wall falls | |
| First test tube baby born | |
| | Event | Decade (*0) | What was it? |
| Death of Princess Diana | |
| Stock Market crash of 19** | |
| Hiroshima and Nagasaki Bombed | |
| Beatles gain popularity in US | |
| WWI | |
| MLK Jr assassination | |
| September 11th attacks | |
| Jonestown Massacre | |
| Sinking of the Titanic | |
| Pearl Harbor attacked | |
| Prohibition | |
| Empire State Building opens | |
|