On June 28th 1914 Archduke Francis Ferdinand, successor to
the throne of Austria-Hungary, and his wife, Sophie Duchess of Hohenberg, were shot and killed by a Bosnian student in Sarejevo. The fatal shooting was the second attempt upon their lives that day. In the earlier incident a bomb was thrown into their open motor car, but the Archduke brushed it aside and it failed to explode.
The student, Gavrilo Princip, propelled Europe into the most ghastly four year death rampage. In truth, his was the spark that set alight the tinder box that was the precarious political situation of the time.
Bosnia and Herzegovina were provinces just south of Austria which had, until 1878, been governed by Turkey. The Treaty of Berlin (1878) settled the issue of the land lost by Turkey after they lost their war with Russia. Austria gained power of administration indefinitely. The population of Bosnia was in three groups; Croats (Roman Catholic), ethnic Serbs (Serb-Orthodox) and Muslims (left over from the days of Turkish rule). There is no such ethnic group as Bosnians. Many Bosnian-Serbs felt a strong nationalistic desire to have their province joined with that of their Serb brothers across the river in Serbia. Many Serbians openly shared that desire. On October 6, 1908, Austria annexed Bosnia and Herzegovina directly into the Austro-Hungarian empire.
Franz Ferdinand and Sophie's murder increased Austro-Serbian tensions and for many in Vienna, this provided the 'last straw' for a new "get-tough" showdown to suppress the upstart and "terrorist" Serbs. As Austria took a hard line against Serbia, the other powers in Europe took sides and the wheels of war became engaged. The stakes far outgrew the squabble between Austria and Serbia. The crisis of July turned into World War, thirty days after the shooting.