| 1910 | Union of South Africa formed |
| 1911 | China’s last dynasty, the Qing Dynasty, ends after the Xinhai Revolution |
| 1912 | The Titanic sinks on its maiden voyage |
| 1913 | Panama Canal opens, connecting the Atlantic Ocean with the Pacific |
| 1914 | Assassination of Archduke Franz Ferdinand of Austria, sparking the onset of World War I |
| 1915 | Sinking of the Lusitania by Germany during WWI |
| 1916 | Battle of the Somme during WWI, one of the largest battles in history |
| 1917 | Russian Revolution leading to the rise of the Soviet Union |
| 1918 | Armistice signed on 11th November, putting an end to WWI |
| 1919 | Treaty of Versailles signed, officially ending WWI and contributing to the conditions leading to WWII |
