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Statue of Janus and Bellona, Schönbrunn Garden, Vienna
Janus was the god of gates, doorways, and beginnings in the Roman religion. He is often depicted having two faces because he looked to both the past and the future. The first month of the Roman calendar (Ianuarius or January) was named in his honor. Janus is shown standing with Bellona, the Roman goddess of war, and according to various accounts the wife or sister of Mars.
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