The World Book Encyclopedia of 1984, volume 14, page 237 states: "The Roman ruler Julius Caesar established January 1 as New Year's Day in 46 BC. The Romans dedicated this day to Janus, the god of gates, doors, and beginnings. The month of January was named after Janus, who had two faces - one looking forward and the other looking backward." This suggests that New Year's celebrations are founded on pagan traditions. Some have suggested this occurred in 153 BC, when it was stipulated that the two annual consuls (after whose names the years were identified) entered into office on that day, though no consensus exists on the matter.[1] Dates in March, coinciding with the spring equinox, or commemorating the Annunciation of Jesus, along with a variety of Christian feast dates were used throughout the Middle Ages, though calendars often continued to display the months in columns running from January to December.