Recommended

This week in Christian history: Pope elected, radical German preacher captured, Adventist leader born

Gregory XIII elected pope – May 14, 1572

A portrait of Pope Gregory XIII (1502-1585), the man who commissioned the creation of the Gregorian calendar.
A portrait of Pope Gregory XIII (1502-1585), the man who commissioned the creation of the Gregorian calendar. | Wikimedia Commons

This week marks the anniversary of when Ugo Boncompagni was elected head of the Roman Catholic Church, eventually taking the name of Pope Gregory XIII.

A native of Bologna, Gregory XIII founded multiple seminaries, championed the arts, and, most notably, oversaw the creation of a new Western calendar, now known as the Gregorian calendar.

The Gregorian calendar was created in response to the shortcomings of the Julian calendar, which had been in use for centuries, but lacked a proper system of leap years.

"The papal bull issued by Pope Gregory XIII in 1582 decreed that 10 days be skipped when switching to the Gregorian calendar. However, only five countries adopted the new calendar system that year—namely, Italy, Poland, Portugal, Spain, and most of France," explained timeanddate.com.

“Since the discrepancy between the Julian calendar year and the astronomical seasons kept growing over time in the centuries that followed, more days had to be skipped in countries that switched to the Gregorian calendar in later years.”

Follow Michael Gryboski on Twitter or Facebook

Was this article helpful?

Help keep The Christian Post free for everyone.

By making a recurring donation or a one-time donation of any amount, you're helping to keep CP's articles free and accessible for everyone.

We’re sorry to hear that.

Hope you’ll give us another try and check out some other articles. Return to homepage.

Free Religious Freedom Updates

Join thousands of others to get the FREEDOM POST newsletter for free, sent twice a week from The Christian Post.

Most Popular

Free Religious Freedom Updates

A religious liberty newsletter that is a must-read for people of faith.

More Articles