This Day in History: The First Ever New Year’s Day Celebration 🎉

This Day in History: <br />New Year’s Day January 1, 45 B.C. After several centuries <br />of the Roman calendar, <br />the Julien calendar <br />was implemented. Following the solar rather <br />than lunar year, the Julien <br />calendar was decreed by <br />Roman dictator, Julius Caesar. To design the calendar, <br />Caesar enlisted the aid of <br />Sosigenes, an Alexandrian astronomer. The year was calculated <br />to be 365 and 1/4 days. Caesar added 67 days <br />to 45 B.C., making 46 B.C. <br />begin on January 1. The calendar was <br />not completely accurate, <br />and the Gregorian calendar <br />was implemented in 1582.