Janus was the Roman god of doorways and passageways.

The statement "Janus was the Roman god of doorways and passageways" is true because Janus was indeed a significant deity in Roman mythology associated with beginnings, transitions, and time. He was often depicted with two faces, one looking into the future and the other into the past, symbolizing his role as the god of doorways and transitions. Janus was believed to preside over entrances, gates, and doorways, both literal and metaphorical, and was revered as the guardian of all beginnings and openings.