When is the next leap year? Here are some fascinating leap year facts, along with all the details about why leap day always falls on Feb. 29.

The Romans added January and February to the calendar but ran into a problem — math and superstition. Here's why February became the odd month out.

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

Pope Francis indicated that the Catholic Church was willing to accept a common date for celebrating Easter in the West and ...

By today’s terminology, Athanasius of Alexandria might be called a “boy genius” or a prodigy. But back in 325 A.D., in his ...

Pope Francis has renewed his proposal for the Catholic Church and the Orthodox Church to have a common date to celebrate Holy ...

There is a country that follows a different calendar than the rest of the world and does not live in 2025, but in 2017. Its ...

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 ...

Noting that in 2025 the date coincides on the West's Gregorian calendar and the East's Julian calendar ... gradually "drifted ...

Noting that in 2025 the date coincides on the West’s Gregorian calendar and the East’s Julian calendar ... gradually “drifted” away from the actual equinox. In 1582, Pope Gregory XIII reformed the ...

Pope Francis on Sunday called for a unified Easter date among Christian churches in the spirit of promoting unity. "It is a happy coincidence that Easter in this ecumenical Jubilee Year is celebrated ...

Pope Francis said that the Catholic Church is ready to accept a single date for all Christians to celebrate Easter.