What's this? / Report Bad Ads
Latest News
World

Pope sends condolences for victims of Turkish cargo jet crash

January 16, 2017. On Monday morning, a Turkish cargo plane has tragically crashed in Kyrgyzstan, killing dozens and hospitalizing many others. Many homes and vehicles in the small village are also destroyed. As a result, Vatican Secretary of State, Pietro Parolin has sent a message of condolences to the victims of the disaster on behalf of Pope Francis.
Vatican

Pope Francis to meet with Palestinian president on Saturday

January 11, 2017. Pope Francis will meet with Palestinian president, Mahmud Abbas on Saturday, January 14, at the Vatican to inaugurate the new Palestinian embassy to the Holy See.
Vatican

Former Director of the Vatican's school for diplomats, Justo Mullor dies

December 30, 2016. The smiling archbishop Justo Mullor died this morning in Rome, at the Pío XI Clinic. He was 84 years old.
Pope Francis

Pope approves new decrees for the Causes of Saints

December 22, 2016. On Wednesday, December 21, Pope Francis authorized the following decrees for the Causes of Saints:

Exhibition in Rome displays for the first time documents of Galileo's professor

2015-01-11

The Gregorian calendar is the most used calendar in the Western world. Also called the "Christian calendar,” it  replaced in 1582 the so called Julian calendar.

IRENE PEDRETTI
Pontifical Gregorian University (Rome)
"This change had a huge impact, because in a fortnight 14 days were gone.”

An exhibition in Rome displays some documents authored by one of the key figures of this reform: the German Jesuit Christopher Clavius.

This mathematician taught scientists like Galileo Galilei and changed the way astronomy worked forever.

IRENE PEDRETTI
Pontifical Gregorian University (Rome)
"He was the first person who said that math should also be used for astronomical observation.”

VALENTINA NICOLUCCI
Fondazione Sorgente Group (Rome)
"It's the first time that these documents are shown to the public. They belong to the Clavius Archive of the Pontifical Gregorian University.”

In this book, Clavius wrote the dates of the major religious festivities up to the year 5,000. Using math, he could predict that on 2015 Good Friday would take place on April 3.

The exhibition will be open till February. It also features several manuscripts of Jesuit Angelo Secchi and Galileo Galilei.


PM
AA
JM
-PR
Up: GRT