In its incomplete form chapters 1-37 of book I describe processions and ceremonies on religious festivals (many lesser ones, but especially great feasts like the Elevation of the Cross, Christmas, Epiphany, Palm Sunday, Good Friday, Easter and Ascension Day and saint's days like St Demetrius, St Basil etc. often extended over many days), while chapters 38-83 describe secular ceremonies or rites of passage like coronations (38-40), weddings (39,41), births (42), funerals (60), or the celebration of war triumphs during feasts at the Hippodrome like Lupercalia (73).