In 1683, Vienna (the capital of Austria) was under siege by over a hundred thousand Ottoman Turks. After several months of trying to starve the city into submission, the Turks attempted to tunnel underneath the walls of the city. Fortunately for the entire city, some bakers hard at work in the middle of the night heard the sounds of the Turks digging and alerted the city’s defenders. This advance warning gave the defenders enough time to do something about the tunnel before it was completed. Soon, King John III of Poland arrived at the head of an army that defeated the Turks and forced them to retreat.