Feb. 29 is more than just an extra day we have once every four years. There is some science behind it. Here's how leap days ...

Every four years, an extra day is added to the calendar, But even with leap day, the math doesn't exactly, well, math.

Presidents Day is a federal holiday celebrated each year in mid-February to honor past U.S. presidents. Locally, it's part of ...

The original Roman calendar divided the year from March to December into 10 months of either 29 or 31 days, based on lunar ...

Well, Christmas has come and gone. All in all, and only speaking for myself, it wasn’t a bad holiday. The celebrations were festive, people seemed to be in a cheerful mood, and the museum ...

At least, that was the idea. Revolutionary as the Julian calendar was, it wasn't perfect, and fell out of alignment over time. In 1582, Pope Gregory XIII introduced the Gregorian calendar ...

Easter is fast approaching. Here's a look at why the date of Easter changes every year and what to know about the holiday.

Pope Francis reaffirms Catholic Church's willingness to accept a common date for Easter in the West and East, highlighting ...

"I try to keep it running." Bowan is one of the many Orthodox Christians who celebrate the holiday according to the Julian Calendar. A part of his life he's always embraced. "This is what I was ...

Prior to the Gregorian and even Julian calendars, Roman King Numa Pompilius (715-673 BC) set about creating a calendar with equal-length months, the University of Chicago said. "When Numa ...