Just a couple years after Martin Luther nailed the 95 theses to the church door in 1517, fellow reformer Ulrich Zwingli got sick from a plague which devastated Europe. In his home of Zurich, 25-50% of the population died from the plague, including Zwingli's brother.

In response to the plague, Zwingli wrote a hymn. Click on his image to read about "'Lord God, Help in this Trouble': The Plague Song of Ulrich Zwingli" from the Presbyterian Historical Society.