April Fool's Day
Gregorian calendar - Aleteia
Pope Gregory XIII, who gave his name to the Gregorian calendar. | European history, Book of life, Fontana
Inter gravissimas - Wikipedia
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.
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
Gregorian calendar | Definition & Facts | Britannica
Origins of the Gregorian Calendar | Bellingham Muse
Pope Gregory XIII: Accomplishments & Legacy | Study.com
Pope Gregory XIII creates the Gregorian Calendar – Historical articles and illustrationsHistorical articles and illustrations | Look and Learn
Blog – Empowering Your Creativity | Klockit
What Is The Gregorian Calendar? - WorldAtlas
The time the pope made 10 days disappear
/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
Pope Gregory XIII: Accomplishments & Legacy | Study.com
Gregorian Calendar Pope Gregory XIII. - ppt video online download
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 - Wikipedia
The Story of the Calendar | Gregorian Calendar Adopted October 4, 1582
Julian to Gregorian Calendar: How We Lost 10 Days
6 Things You May Not Know About the Gregorian Calendar - HISTORY
Gregorian Calendar Reform – Science meets Faith
On This Day In History: The Gregorian Calendar Implemented – On Oct 5, 1582 - Ancient Pages
The Dragon and the Calendar - Pope Gregory XIII
