RANK | EVENT |
1 | The Holocaust |
2 | World War ll |
3 | 9/11 World Trade Center Attacks |
4 | Atomic Bombs on Hiroshima and Nagasaki |
5 | The Black Plague |
6 | World War I |
7 | Sinking of the Titanic |
8 | The Crucifixion of Jesus Christ |
9 | The Slave Trade |
10 | Pearl Harbor Attack |