What kinds of calendars are there?

Calendars are divided into lunar calendar, solar calendar and yin-yang calendar.

1. The lunar calendar is one of the traditional calendars in China and the original calendar in ancient countries. Calendars based on the apparent movement of the moon are called lunar calendars, also known as lunar calendars, lunar calendars, ancient calendars, yellow calendars, summer calendars and old calendars.

The real lunar calendar is the Islamic calendar. In other words, regardless of the seasonal changes, twelve lunar months are a year. The lunar calendar is mainly used to guide their religious festivals.

Second, the solar calendar is a calendar based on the earth's movement cycle around the sun, also known as the solar calendar. The Gregorian calendar is an operating cycle based on the direct point of the sun, and its average calendar year is the tropic year. There are two kinds of calendar years, one is a normal year, the other is a leap year, and the leap year is only one day away from the normal year.

The Gregorian calendar, which is widely used in the world, is the most familiar solar calendar. This calendar is saturated with the civilization created by human beings for thousands of years. It was learned by the ancient Romans from the Egyptians and spread all over the world with the expansion of the Roman Empire and the rise of Christianity.

Third, the lunar calendar refers to the calendar that takes into account the relationship between the sun, the moon and the earth in astronomy. The scientific name of English is the solar calendar. In the lunar calendar, the moon revolves around the earth 1 month, but the setting of leap months makes the average number of days in a year consistent with the number of days in the tropic year, so this calendar is consistent with the periodic movement of the moon and the earth around the sun.

Extended data:

The origin of the calendar:

The first calendar in China was about 4000 years ago. According to a page of Oracle Bone Inscriptions calendar in Oracle Bone Inscriptions, it is proved that the calendar of Yin Dynasty has reached a considerable level. This page of Oracle Bone Inscriptions is the oldest almanac of all mankind, and this page of Oracle Bone Inscriptions is also called the calendar.

Calendars were used about 65,438+0,000 years ago in Tang Shunzong's Yongzhenyuan Palace (AD 805), so they are also called imperial calendars. At that time, the calendar was divided into twelve volumes, and the number of pages in each volume was equal to the number of days in each month. The month and date are written on each page and given to the officials who serve the emperor. The words and deeds of the emperor are recorded in the blank space of the calendar every day, and are first given to the emperor at the end of each month, and then sent to the historian for filing.

Historians compile "national history" according to the contents recorded in the calendar and the major events in the imperial court and China. Later, many officials in the imperial court thought this kind of calendar was good, so they followed suit and compiled calendars for their own use. Then, some people first print the monthly meeting, solar terms and auspicious days of the zodiac on the calendar, leaving a big blank for notes.

Calendars have only developed into wall calendars, desk calendars and electronic calendars for nearly a hundred years. Calendars are often decorated with images, and the month plate is one of the decorative pictures of calendars. Nowadays, they have become indispensable items for people's production and life. Calendars are used to record dates and other related information. Each page displays one day's information, which is called a calendar; A month's information is called a monthly calendar; A year's information is called an almanac.

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