Who introduced the Gregorian calendar?

Pope Gregory I, called the Great
St. Gregory the Illuminator
Pope Gregory XIII
Galileo
Gregory XIII was pope during the period from 13 May 1572 until 10 April 1585. The Gre­go­ri­an cal­en­dar, also called the Western Cal­en­dar, was in­tro­duced by him in 1582 with the Bull Inter Gravis­si­mas. The gre­go­ri­an calendar ba­si­cal­ly a re­fine­ment of the Julian cal­en­dar. The Gre­go­ri­an reform modified the Julian cal­en­dar's scheme of leap years, changing the mean length of the calendar year from 365.25 days to 365.2425 days.

Answers distribution

Pope Gregory I, called the Great
St. Gregory the Illuminator
Pope Gregory XIII
Galileo
answers
flagVietnam
0%
0%
100%
0%
11
flagBulgaria
0%
0%
100%
0%
10
flagthe United Arab Emirates
0%
3%
96%
0%
29
flagFinland
6%
0%
93%
0%
43
flagGreece
10%
0%
84%
5%
19
flagCanada
10%
0%
84%
5%
19
flagItaly
6%
0%
81%
10%
48
flagBelgium
9%
9%
81%
0%
11
flagSpain
22%
0%
77%
0%
18
flagFrance
12%
4%
76%
8%
25
flagthe Netherlands
13%
1%
75%
9%
52
flagGermany
15%
4%
71%
8%
172
flagPoland
18%
4%
70%
7%
10605
flagthe United States
17%
1%
69%
12%
165
flagthe United Kingdom
16%
5%
67%
10%
340
flagNorway
10%
5%
65%
20%
20
flagRepublic of Ireland
11%
2%
63%
22%
36
flagUnknown
21%
5%
62%
10%
895
flagSweden
25%
10%
50%
15%
20
flagIndia
28%
19%
42%
9%
21

Gender

men69%
women75%
Pope Gregory I, called the Great
18%
16%
St. Gregory the Illuminator
4%
2%
Pope Gregory XIII
69%
75%
Galileo
7%
5%

Language versions

question
answers
results
flag
Who introduced the Gregorian calendar?
258
53%

Details

Author: Krzysztof Moskal
tools
Should this question be improved? Improve it.
Globalquiz questions are translated by users for other users. Translate this question.