For Britons the end of the tax year looms on April 5th. Why such a seemingly random date?

Cardinal Robert F. Prevost's selection of the name Pope Leo XIV was an apparent nod to Pope Leo XIII, the father of Catholic social doctrine.

Today in History for June 7: ...

Social media users have been baffled to discover that the iPhone calendar is missing 10 days. The strange omission was spotted by a sharp-eyed iPhone user who found that the calendar jumps from ...

Leo officially opened his pontificate by taking his first popemobile tour through the piazza, a rite of passage that has become synonymous with the papacy's global reach and mediatic draw.

Icas94/De Agostini Picture Library via Getty Images Pope Gregory XIII. He is famously known for reforming the Julian calendar, resulting in the Gregorian calendar we use today. He wanted to ...

The Gregorian calendar, still in use today, was introduced by Pope Gregory XIII in 1582. Among papal names, John remains the most popular, having been used legitimately by 21 pontiffs. In terms of ...

One such pontiff was Pope Gregory XIII. Purported miscalculations in the Julian calendar spurred Gregory XIII to decree a new calendar in 1582 – as the spring equinox had fallen back to early ...

But the two churches started using different calendars after Pope Gregory XIII’s adaptation in 1582, when the Western church adopted the Gregorian calendar while the Eastern Orthodox Church kept ...