Today, most people on the planet use the modern Gregorian calendar and count the time from the date of the birth of Christ. But there are still calendars that continue to count down, for example, from the creation of the world.
Jewish calendar
The date of October 7, 3761 BC, is responsible for the beginning of the Jewish calendar. These data are responsible for the mythical "creation of the world" or the "era of Adam." Today, this calculus is officially used in Israel. Of course, they also use today's calendar, but there are special tables for translating dates.
In the Jewish calendar, as in the Gregorian, there are also 12 months, but there is a difference. The last month in a leap year doubles, and for this reason the year will last 30 days longer.
According to the Islamic calendar, today is 2636. According to the calendar used by Thais (Buddhist) - 2557, and among Jews - 5769.
Julian calendar
The next calendar is the Julian calendar, it begins to count down from 45 BC. It was adopted by Julius Caesar. The new year on this calendar began in March and lasted the same as today's Gregorian. In a leap year alone, there were 30 days in February. The name of the months originates from the names of the ancient Roman pagan deities. After Octavian August came to power, some changes were made - the year already began in January. The Julian calendar itself has been used for more than 1600 years, after which it was replaced by another.
Muslim (Islamic) calendar
The Muslim calendar, or “Mohammedan calendar, ” dates back to 622 CE. - from Hijri - the relocation of the Prophet Muhammad. This calendar was created by the Arabs and was considered lunar, as a result of which it gained fame in the eastern countries inhabited by Arabs.
As for the basis of the calendar, it is based on the calculation of changes in the lunar phases. In countries where the main religion is Islam, they use only the lunar calendar, which is not dependent on the movement of the sun. By the way, this attitude to calculus is also dictated by religious tradition, because it is no coincidence that even talking after fasting is accepted at night.
