1904 | Asia
 Kilburn Brothers, n.d., 16511 the Siberian Sharp-shooters taking up their position at Liao Yang, Manchuria (Detail), Stereocard, Jefferson Stereoptics, LL/11883 | Russo-Japanese War |
1906 | Europe - Spain
 Unidentified photographer / artist, n.d., After the explosion to [sic] Madrid, Stereocard, Paul Frecker, LL/12001 | Attempted assassination of Alfonso XIII (1886-1941) and Princess Victoria-Eugenie of Battenburg in Madrid with a bomb on their wedding day. |
1914 | Global
| First World War |
1914 | North America - Panama
| Panama Canal completed |
1915 | Europe - Turkey
| Armenian massacres |
1916 | Europe - Great Britain
| The Easter Rising in Dublin fails to free Ireland from British rule. |
1917 | North America - USA
| The US enters the First World War on the Allied side. |
1917 | Europe - Russia
| Russian Revolution |
1917 | Middle East
| Balfour Declaration gives support for a Jewish homeland in Palestine |
1918 | Europe
| Armistice is signed ending the First World War. |
1918 | Europe - Germany
| Following the First World War the German Empire collapses and the Weimar Republic is born. This initiates a period of political, social and artistic upheaval that stimulates new ideas in design, typography, art and photography. |
1919 | Europe
| Treaty of Versailles is signed and settles, for a time, the issues raised by the First World War. |