Satanic origin of the Gregorian Calendar
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February 9, 1581 Pope Gregory XIII, Creator of the Gregorian Calendar: A Signed Letter from 1581 – Papal Artifacts
Twitter 上的EHS："#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" / Twitter
Pope Gregory XIII, who gave his name to the Gregorian calendar. | European history, Book of life, Fontana
Today in History, February 24, 1582: Pope Gregory XIII outlined Gregorian calendar
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Pope Gregory XIII 1582: Gregorian Calender - 10 Events that Changed America
CatholicSaints.Info » Blog Archive » Pope Gregory XIII
Gregory XIII | pope | Britannica
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April Fool's Day
Top 100 Global Creator - P93. Pope Gregory XIII: Creator of Gregorian calendar - WCSA.WORLD
Catholics at Work - DID YOU KNOW: Pope Gregory XIII ordered to standardized the calendar because Julian calendar did not properly reflect the actual days the Earth takes to circle once around
Gregorian calendar - Aleteia
On This Day In History: The Gregorian Calendar Implemented – On Oct 5, 1582 - Ancient Pages
What Is The Gregorian Calendar? - WorldAtlas
/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
Discussion of the Reform of the Calendar under Pope Gregory XIII (1502-85) replaced by the Gregorian Calendar, Rome, October 15, 1582. Note the scholar in right background pointing to the constellation Scorpio.
Pope Gregory Xiii Calendar Reform 1582 Carry-all Pouch by Photo Researchers | Fine Art America
Inter gravissimas - Wikipedia
File:Pope Gregory XIII (Ugo Buoncompagni, 1502–1585, pope 1572), Promulger of the Gregorian Calendar MET 13987.jpg - Wikimedia Commons
