What are those types of calendars?

Calendars are categorized into three types: the lunar calendar, the solar calendar and the yin-yang calendar.

I. The lunar calendar is one of the traditional Chinese calendars, and is the original annual calendar of the ancient country. The calendar, which is based on the moon's visual movement pattern, is called the "Taiyin calendar", and is also known as the "lunar calendar", "Yin calendar", "ancient calendar", "yellow calendar", "summer calendar" and "old calendar", etc. The real lunar calendar is the solar calendar, which is based on the moon's visual movement pattern.

The true meaning of the lunar calendar is the Islamic calendar (Hijri). In other words, there are twelve lunar months in a year, regardless of seasonal changes. The lunar calendar is mainly used to guide their religious festivals and so on.

Two, the solar calendar, is based on the Earth's orbit around the sun cycle of movement and the calendar, also known as the solar calendar. The solar calendar is based on the orbiting cycle of the sun's point of direct sunlight, and its average calendar year is a regression year, and there are two kinds of its calendar year, one is a flat year, and the other is a leap year, and the leap year and the flat year differ by only one day.

The Gregorian calendar is the most familiar solar calendar in the world. The calendar, steeped in the civilization created over thousands of years, was learned by the ancient Romans from the Egyptians and spread around the world with the expansion of the Roman Empire and the rise of Christianity.

Three, the lunisolar calendar is in astronomy refers to both the sun, the moon and the relationship between the earth a calendar, the English name lunisolar calendar. The lunisolar calendar takes the moon's orbit around the earth as one month, but sets up intercalary months, so that the average number of days in a year corresponds to the number of days in the year of return, so this calendar is consistent with the phases of the moon, and also with the earth's cyclic motion around the sun.

Expanded information:

Calendar's origin:

The calendar was first introduced in China about four thousand years ago. According to a page of oracle bones in the oracle bone calendar, proving that the calendar of the Yin Dynasty already has a considerable level, this page of oracle bone calendar is the oldest calendar of all mankind in kind, this page of oracle bone calendar is also called calendar.

The use of the calendar, about 1,000 years in the Tang Shunzong Yongzhen yuan (805 AD) in the palace, so also known as the imperial calendar. At that time, the calendar was divided into twelve books, each with a number of pages equal to the number of days in a month, and the month and date were written on each page, which was given to the speech and behavior officer serving the emperor, who would write down the emperor's words and deeds in the blank space of the calendar every day, and at the end of each month, the calendar would be submitted to the emperor for review before being sent to the historians for filing.

The historians wrote the "national history" according to the calendar, taking into account the major events that happened at the court and in different parts of the country. Later, many officials of the court found such calendars good, so they followed suit and prepared calendars for their own use. Then there are those who will be on the calendar of the dry branches of the month will be, festivals and auspicious days of the zodiac are first printed on the calendar, leaving a large blank to prepare for the record.

Calendars have evolved into wall calendars, desk calendars, and electronic calendars in the last hundred years. Calendars are often accompanied by images as a decoration, the month plate is one of the decorative paintings of the calendar. Now they have become indispensable supplies for people's production and life. Calendars are used to record dates and other relevant information. Each page shows one day's information called calendar, each page shows one month's information called monthly calendar, each page shows the whole year's information called annual calendar.

Baidu Encyclopedia-Calendar