Gregory XIII

American  

noun

1. Ugo Buoncompagni, 1502–85, Italian ecclesiastic: pope 1572–85, educator and innovator of the modern calendar.

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Gregory XIII British  

noun

1. 1502–85, pope (1572–85). He promoted the Counter-Reformation and founded seminaries. His reformed (Gregorian) calendar was issued in 1582

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Example Sentences

Often, they bear little resemblance to Pope Gregory XIII’s preferred method.

From Washington Post

The Julian calendar was first introduced in October 1582 by Pope Gregory XIII.

From BBC

In 1582 and 1591, Pope Gregory XIII’s official Corpus of Canon Law included this heresy: “having the opinion of innumerable worlds.”

From Scientific American

He also placed bees above the golden-colored dragon that symbolized the family of Gregory XIII.

From The Wall Street Journal

In the 16th century, the Christian world switched from the Julian calendar, which was introduced by Julius Caesar, to the Gregorian calendar named for Pope Gregory XIII.

From Time