CHRONOLOGY
of
WORLD WAR I
| 1871 | Unification of Germany | ||
| King Wilhelm of Prussia becomes Emperor of Germany | |||
| 1878 | Treaty of San Stefano | ||
| Congress of Berlin | |||
| 1879 | October | 7 | Dual-Alliance between Austria-Hungary and Germany |
| 1881-1887 | Otto von Bismarck set up the Three Emperor's League between Germany, Russia, and Austria-Hungary | ||
| 1882 | May | 20 | Triple Alliance formed between Germany, Austria-Hungary, and Italy. |
| 1888 | Wilhelm II becomes ruler of Germany | ||
| 1894 | Franco-Russian Alliance | ||
| 1898 | Germany, no longer an ally of Russia, mobilizes her army and stays loyal to Austria-Hungary as the Franco-Russian Alliance grows stronger. | ||
| 1905 | 1st Moroccan Crisis | ||
| 1908 | England, France, and Russia form the Triple Entente | ||
| 1911 | 2nd Moroccan Crisis | ||
| 1912 | Serbia, Bulgaria, Montenegro, and Greece form the Balkan League and defeat the Ottomans in the First Balkan War. | ||
| 1913 | Second Balkan War | ||
| 1914 | June | 28 | Assassination of Archduke Franz Ferdinand and his wife, Sophie, at Sarajevo, Bosnia |
| July | 26 | Austria-Hungary issues ultimatum to Serbia | |
| 28 | Austria-Hungary declares war on Serbia and Russia | ||
| 29 | Russian mobilization ordered | ||
| August | 1 | Germany declares war on Russia | |
| 2 | Germany demands access of its troops through neutral Belgium | ||
| 3 | Germany declares war on France Belgium denies German access |
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| 4 | Germany declares war on Belgium President Wilson issues U.S. as neutral Great Britain declares war on Germany |
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| 6 | Austria-Hungary declares war on Russia | ||
| 8 | Serbia declares war on Germany | ||
| 12 | Great Britain declares war on Austria-Hungary | ||
| 14 | Battle of Frontiers | ||
| 23 | Japan declares war on Germany | ||
| 25 | Austria declares war on Japan | ||
| 28 | Austria declares war on Belgium | ||
| 31 | Russia defeated by Germany at Battle of Tannenberg | ||
| September | 3 | Paris seiged and government is moved to Bordeaux | |
| 6-10 | Battle of Marne | ||
| 14 | Start of trench warfare | ||
| November | 5 | Great Britain and France declare war on Turkey Cyprus annexed by Great Britain |
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| 1914 | December | 21 | First German air raid on Great Britain |