Share

This Week in Christian History: Oscar Romero, Gregorian Calendar, Gutenberg Bible

By Michael Gryboski, Editor Twitter

The Gregorian Calendar is Introduced – February 24, 1582

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. | (Photo: Wikimedia Commons)

This week marks the anniversary of when Pope Gregory XIII officially introduced the calendar that not only bears his name, but is widely used to this day.

In a Papal Bull titled Inter Gravissimas, the Gregorian calendar was introduced as a reform of the commonly used Julian calendar.

"The reason the Julian Calendar had to be replaced was the formula it used to calculate leap years. The Julian formula produced a leap year every four years, which is too many. The Gregorian Calendar uses a much more accurate rule for calculating leap years," explained timeanddate.com.

While many Catholic nations immediately switched to the new calendar, non-Catholic European countries like England and Russia took far longer to make the change.

Follow Michael Gryboski on Twitter or Facebook

You’ve readarticles in the last 30 days.

Was this article helpful?

Help keep The Christian Post free for everyone.

Our work is made possible by the generosity of supporters like you. Your contributions empower us to continue breaking stories that matter, providing clarity from a biblical worldview, and standing for truth in an era of competing narratives.

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.

Most Popular

More Articles