Imagine you’re visiting the great Notre Dame Cathedral in Paris, sometime around New Year’s Day in the year 1405. You walk into the huge building expecting to see a solemn worship service. Instead, you see the most amazing sight. Priests are dancing around the altar, wearing their clothes inside out and chanting nonsense syllables instead of the words of the service. The smell of incense fills the air—but it stinks, because it’s made from smelly old shoes! And up the beautiful center aisle of the church, two monks are leading—a donkey! You wonder, What is going on here? Read More