In 1914, Archduke Franz Ferdinand of Austria and his wife, Sophie, were shot to death in Sarajevo by Serb nationalist Gavrilo Princip — an act that sparked World War I.

In June 1914, Austrian Archduke Franz Ferdinand and his wife Sophie traveled to Bosnia, which had been annexed by Austria-Hungary, for a state visit.

On June 28, the couple went to the capital city of Sarajevo to inspect imperial troops stationed there. As they headed toward their destination, they narrowly escaped death when Serbian terrorists threw a bomb at their open-topped car.

Their luck ran out later that day, however, when their driver inadvertently drove them past 19-year-old Serbian nationalist Gavrilo Princip who shot and killed Franz Ferdinand and his wife at point-blank range. Austria-Hungary was furious and, with Germany’s support, declared war on Serbia on July 28.

Within days, Germany declared war on Russia—Serbia’s ally—and invaded France via Belgium, which then caused Britain to declare war on Germany.