No one is really sure what motivated the hand that fired the gun that started the first world war in 1914. The bullets, for sure, found their targets in June of that year in Sarajevo when Archduke Franz Ferdinand, heir to the throne of the Austro-Hungarian Empire, along with his wife, Sophie, were assassinated. The events leading up to this action, however, began years before around 1871 (according to a timeline found on the PBS web site). Changes in the ruling centers of countries like Germany, Russia, and Great Britain seemed to trip a line of political dominoes that started falling into place from this point in the late 1800s to the firing of that gun in 1914. Europe seemed unsettled; the relationships between dominant countries seemed tenuous. Surely the atmosphere that hinted of the war to come was felt everywhere as the world entered its new century....