Janus
Also known as: Ianus

Mythological Narrative
God of beginnings, gates, transitions, time, duality, doorways, passages, and endings. Uniquely Roman deity with no Greek equivalent. Depicted with two faces looking to past and future.
Scholarly Commentary & Evolution
## Janus, who looks both ways
Janus has no Greek twin, and Romans knew it. He is the god of going in and going out: doors, gates, the first of the year, the first word of a prayer. He is shown with two faces, one toward what has happened and one toward what has not. January bears his name. The gates of his shrine in the Forum, the **Janus Geminus**, stood open in war and closed in peace, which happened rarely enough to be worth recording.
### First invoked
Varro and the pontifical tradition put him at the beginning of ceremony. Before Jupiter is named, Janus is named, because nothing starts without a threshold. Kings in legend, including Numa, are said to have kept his cult as part of teaching Romans how to begin things properly.
### War and peace as a door
When the Senate wanted to say that Rome was at peace, it did not compose a hymn. It closed a gate. Janus is that kind of god: practical, architectural, and older in feel than the imported Olympian family, even when later writers tried to place him in a genealogy.
Cross-Pantheon Parallels & Archetypes
Academic Discussion & Critique
Exchange peer-reviewed hypotheses, comparative Indo-European etymologies, and archaeological field interpretations regarding Janus.
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