The Cosmati Pavement in Westminster Abbey: “In the year of Christ one thousand two hundred and twelve plus sixty minus four, the third King Henry, the city, Odoricus and the abbot put these porphyry stones together. If the reader wisely considers all that is laid down, he will find here the end of the primum mobile.” From a story in the Guardian: “Only a handful of brass letters remains of the original long inscription, but it was transcribed centuries ago. It names the king, the chief craftsman as Odoricus, gives the date in a tortuous riddle, and then mysteriously suggests that the world will last for 19,683 years, by adding together the life spans of different animals: “add dogs and horses and men, stags and ravens, eagles, enormous whales….”