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

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

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 ...

VATICAN CITY (CNS) -- Celebrating the Week of Prayer for Christian Unity, Pope Francis reaffirmed the Catholic Church’s willingness to accept a proposal for a common date for celebrating Easter in the ...

Presidents Day is a federal holiday in February to honor past U.S. presidents. See when it is observed in 2025 and what to know about the holiday.

Pope Francis on Sunday called for a unified Easter date among Christian churches in the spirit of promoting unity. "It is a ...

Foula - which is home to fewer than 40 people - never fully adopted the modern Gregorian calendar, preferring instead to follow some of the traditions of the Julian calendar. So this sees ...

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