Janus - Wikipedia
In ancient Roman religion and myth, Janus (/ ˈ dʒ eɪ n ə s / JAY-nəs; Latin: Ianus [ˈi̯aːnʊs]) is the god of beginnings, gates, transitions, time, duality, doorways, passages, frames, and endings. He is usually depicted as having two faces. The month of January is named for Janus ().According to ancient Roman farmers' almanacs Juno was mistaken as the tutelary deity of the month of ...