Pope Gregory XIII 1582: Gregorian Calender - 10 Events that Changed America
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October 4, 1582 – The Gregorian Calendar is introduced by Pope Gregory XIII.
Today in History, February 24, 1582: Pope Gregory XIII outlined Gregorian calendar
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Portrait of Pope Gregory XIII
On this day in 1582: Pope Gregory XIII announces the new Gregorian calendar
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:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/51177367/GettyImages-56215179.0.jpg "We've been using the Gregorian calendar for 434 years. It's still bizarre. - Vox")
We've been using the Gregorian calendar for 434 years. It's still bizarre. - Vox
Gregorian calendar - Aleteia
Pope gregory xiii - Worldkings - World Records Union
Ten Days That Vanished: The Switch to the Gregorian Calendar | Britannica
EHS on Twitter: "#OTD in history the Gregorian Calendar was introduced by Pope Gregory XIII... Did you know yesterday was the 4 October?!... back in 1582, that is. #churchhistory #religioushistory https://t.co/onqGvEoNux" /
Pope Gregory Xiii Calendar Reform 1582 Photograph by Photo Researchers | Pixels
History Of Our Calendar | Calendars
