June 28, 1914. The Day the Deluge Began.

Saturday marks the 100th anniversary of the assassination of Archduke Franz Ferdinand and his wife during a visit to Sarajevo. The miseries of the bloody 20th century flowed from that day.

The BBC’s Radio 4 is chronicling those events in a Month of Madness series with Professor Christopher Clark. One of the conspirators threw a bomb at the motorcade that exploded under the car behind the Archduke’s. The Archduke insisted they continue–into the path of the assassin.