My Catholic Faith - 😇Pope Gregory XIII 👉Pope Gregory XIII (Latin: Gregorius XIII; 7 January 1502 – 10 April 1585), born Ugo Boncompagni, was head of the Catholic Church and ruler of
Steve Berry - On October 15, 1582, Pope Gregory XIII introduced the Gregorian calendar. It was a refinement to the Julian calendar first implemented by Julius Caesar in 46 B.C. The Julian
![Antique Prints & Drawings | Portrait of Pope Gregory XIII (1502-1585) - Gregorian Calendar | Intaglio Antique Prints & Drawings | Portrait of Pope Gregory XIII (1502-1585) - Gregorian Calendar | Intaglio](https://static.galerie-napoleon.com/images/MED/MQ-14134/HQ720.jpg)
Antique Prints & Drawings | Portrait of Pope Gregory XIII (1502-1585) - Gregorian Calendar | Intaglio
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" /
![Top 100 Global Creator - P93. Pope Gregory XIII: Creator of Gregorian calendar - Worldkings - World Records Union Top 100 Global Creator - P93. Pope Gregory XIII: Creator of Gregorian calendar - Worldkings - World Records Union](https://worldkings.org/Userfiles/Upload/images/811z1.jpg)
Top 100 Global Creator - P93. Pope Gregory XIII: Creator of Gregorian calendar - Worldkings - World Records Union
![Pope Gregory XIII creates the Gregorian Calendar – Historical articles and illustrationsHistorical articles and illustrations | Look and Learn Pope Gregory XIII creates the Gregorian Calendar – Historical articles and illustrationsHistorical articles and illustrations | Look and Learn](https://www.lookandlearn.com/history-images/preview/LL/LL0244/LL0244-009-00.jpg)