1.6 Calendars

Question 1

Gregorian calendar

Answer 1

The solar calendar first introduced under Pope Gregory XIII in 1582, and adopted by Western nations during the following two centuries.

Question 2

Julian calendar

Answer 2

The solar calendar introduced during the reign of Julius Caesar in 46 BC and used in Western societies until replaced by the Gregorian Calendar.

Question 3

Lunar calendar

Answer 3

A calendar based strictly on phases of the moon.

Question 4

Lunisolar calendar

Answer 4

A calendar based on both the phases of the moon and the orbit of Earth around the sun.

Question 5

Solar calendar

Answer 5

A calendar based primarily on Earth’s orbit around the sun. The Gregorian calendar we use today is a solar calendar.