Europe 1914: Assassination of Franz Ferdinand
Serbia's sudden expansion in the Balkan Wars increased tensions between it and Austria-Hungary, which had a significant Serb minority. On June 28, 1914, the Austro-Hungarian Archduke Franz Ferdinand was assassinated by a Bosnian Serb terrorist while visiting Sarajevo. Austria-Hungary quickly seized upon the assassination as an excuse to crush Serbia. However, while Austria-Hungary was backed by Germany, Serbia was supported by Russia, which in turn was allied to France.
29 Sep 1913 Treaty of Constantinople▲
The Ottoman Empire and Bulgaria signed the Treaty of Constantinople in the Ottoman capital of Constantinople, bringing an end to their conflict beginning in the Second Balkan War. By the terms of the treaty, Bulgaria acknowledged the Ottoman reconquest of Edirne and surrounding area, while the Ottomans agreed to cede Western Thrace and end their support of the provisional government there.
28 Jun 1914 Assassination of Franz Ferdinand▲
Austrian Archduke Franz Ferdinand assassinated at Sarajevo