This now worldly Catholic feast originates in Bolsena in 1263 when a host started to drip blood while being consecrated by a doubtful priest. The dark stains can still be seen on the altar placed at the catacombs entrance as witness to the miracle proclaimed by Pope Urban IV. Processions are organized every year through flower-carpeted streets.
- Etruria, Travel History and Itineraries in Central Italy, Dr. Mary Jane Cryan, 2010