In Roman mythology, Janus (or Ianus) was the god of gates, doors, doorways, beginnings and endings. His most prominent remnants in modern culture are his namesakes: the month of January, which begins the new year, and the janitor, who's a caretaker of doors and halls. He's most often depicted as having two faces or heads, facing in opposite directions. Janus's one of the few major deities in Roman mythology that doesn't have a Greek origin or counterpart. Etymology According to Macrobius and Ci… (More on Janus)