- 1. When was the Gregorian calendar first introduced?
A) 1582
B) 1750
C) 1400
D) 1650
- 2. Who was the Pope at the time of introducing the Gregorian calendar?
A) Pope Francis
B) Pope Gregory XIII
C) Pope Benedict XVI
D) Pope John Paul II
- 3. The Gregorian calendar was a reform to which previous calendar?
A) Julian calendar
B) Chinese calendar
C) Mayan calendar
D) Islamic calendar
- 4. How many days are in a common year in the Gregorian calendar?
A) 366
B) 360
C) 365
D) 370
- 5. In the Gregorian calendar, what month was chosen as the starting point of the year?
A) December
B) September
C) January
D) March
- 6. How many leap years are there in a century in the Gregorian calendar?
A) 25
B) 23
C) 24
D) 20
- 7. What is the purpose of the Gregorian calendar reform?
A) To align with lunar cycles
B) To adjust to changes in Earth's rotation
C) To simplify counting days
D) To correct inaccuracies in the Julian calendar
- 8. What does the term 'common year' in the Gregorian calendar refer to?
A) A year that is not a leap year
B) A year with exactly 365 days
C) A year with no significant events
D) A year without any leap days
- 9. How many months in the Gregorian calendar have 31 days?
A) 8
B) 6
C) 7
D) 5
- 10. In leap years, which month has an extra day added in the Gregorian calendar?
A) January
B) February
C) March
D) April
- 11. How many days are there in a leap year in the Gregorian calendar?
A) 364
B) 365
C) 367
D) 366
- 12. Which year follows the year 1751 in the Gregorian calendar?
A) 1750
B) 1752
C) 1753
D) 1754
- 13. What is the average length of a year in the Gregorian calendar?
A) 365.2425 days
B) 364 days
C) 366 days
D) 365 days
- 14. What major astronomical event is used as the basis for the Gregorian calendar?
A) Jupiter's orbit around the Sun
B) Moon's orbit around the Earth
C) Mars' orbit around the Sun
D) Earth's orbit around the Sun
- 15. Which year was not a leap year in the Gregorian calendar system?
A) 1900
B) 2000
C) 2100
D) 1800
- 16. How many weeks are in a year in the Gregorian calendar?
A) 53
B) 50
C) 52
D) 51
- 17. What system does the Gregorian calendar use to divide days into groups of seven?
A) Week
B) Month
C) Decade
D) Year
- 18. Which month's name in the Gregorian calendar originates from the Roman god of war?
A) June
B) March
C) April
D) May
- 19. In the Gregorian calendar, which day of the week will January 1st, 2100 fall on?
A) Sunday
B) Friday
C) Thursday
D) Saturday
- 20. How many days did the Gregorian calendar skip to realign the calendar with the solar year?
A) 15
B) 5
C) 20
D) 10
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