Why Do Some Countries Use Different Calendars?

In this video we will talk about the different calendars that exist throughout the world. We will explain how, in general, calendars are categorized as either being Solar, Lunar, or Lunisolar; with the first being related to the position of the sun, the second related to the position of the moon, and the third related to both.

We list some of the more well known calendars in each of these categories - such as the Chinese calendar, the Hebrew, the Islamic, or the Indian National Calendar - explaining in which circumstances they are used and understanding how most of the world, save a few exceptions, has adopted the Gregorian Calendar as its main civil calendar, using local ones for cultural and religious purposes only.