If January felt like endless, February may be refreshing since it's only 28 days long: Thank the Romans for that oddity. Prior to the Gregorian and even Julian calendars, Roman King Numa Pompilius ...

But the modern Leap Day as we know it traces its roots back to ancient Rome. Romulus, the first king of Rome, established the Roman Republican calendar around 738 B.C., decreeing that a year began ...