In 1938, a house known today as "Bicentenary House" (Casa del Bicentenario) was unearthed
in Herculaneum.
Archaeologists found it exactly 200 years after excavations began in this area. There is cross-shaped recess preserved on wall of one of rooms on second floor. There used to be wooden cross in this place.
It appears, that Nazarene was worshiped secretly in Herculaneum until, 79 AD, place was covered with ashes from Vesuvius. Arrangement of room resembles modern chapels.