Set against a wall in the courtyard of Casa Reali, a late medieval house in the town of Veroli, in the Italian region of Lazio, is an exceptional archaeological find: the Roman calendar known as Fasti Verolani. The marble plaque was discovered in 1922 as a sealing stone for a tomb in a paleo-Christian necropolis discovered in the same spot. Camillo Sciacca Scarafoni, a local scholar, reconstructed the calendar from 60 fragments. Three columns are preserved. For each month, Ian(uarius), Feb(ruarius), and M(artius), the calendar lists the public and religious…