A human skull was carried into a Czech town in late September as part of the country’s observance of St Wenceslas Day, officially the day of Czech statehood. The public holiday honours Wenceslas, the 10th century ruler later venerated as the patron saint of the Czech lands and the “Good King Wenceslas” of the familiar Christmas carol. Wenceslas (Václav in Czech) was born around 907 and became ruler of Bohemia as a teenager. Raised as a Christian, he promoted Christianity – then relatively new to...