Why does the Mid Autumn Festival meet the National Day? What is the Mid Autumn Festival and National

The reasons why the Mid-Autumn Festival meets the National Day are as follows:

The Chinese lunar calendar stipulates that the big month is 30 days, the small month is 29 days, and the 12 months of the year are 354 days or 355 days, so that the lunar year will be about 11 days less than the return year, and the average will be one month less every 2-3 years.

In order to solve this problem, the ancestors of the Chinese, on the basis of astronomical observations, thought of a good method, that is, to add a "leap month", adding a leap month every 2-3 years, so that the average length of the lunar year can be close to the return year. At the same time, the leap month should ensure that the first month of the lunar year is spring to March, April to June is summer, July to September is autumn, October to wax moon is winter, and at the same time to ensure that the Spring Festival is in late winter and early spring.

In 2020, there is an extra leap April, that is, there are two Aprils in the lunar calendar this year, which leads to the Mid-Autumn Festival being postponed by one month, so that the National Day and Mid-Autumn are the same day.

The point in time when the situation occurred on the same day of the double festival

In addition to 2020, the last four overlapping years are 1944, 1963, 1982, 2001, and the next overlapping year is 2031.

In fact, there is no fixed cycle for the overlap of the two festivals, as long as the leap month appears before the 7th month of the lunar calendar, the Mid-Autumn Festival has the opportunity to coincide with the National Day, and most of the situations encountered in actual life are that the Mid-Autumn Festival and the National Day meet but do not coincide.

Mid-Autumn Festival is said according to the Chinese lunar calendar, National Day is said according to the solar calendar, and then the lunar calendar has leap months that rush to each other and converge.

It's a coincidence, it's not arranged.

The time came together.

What is the story behind the Mid-Autumn Festival and the National Day?

The Mid-Autumn Festival and the National Day are connected together, and it is natural that they should become the Mid-Autumn Festival and National Day. The Mid-Autumn Festival and the National Day are the same day of the year, and the two festivals have overlapped in history: 1944, 1963, 1982, 2001; The next years that will coincide are 2020, 2039, etc.

The National Day and Mid-Autumn Festival are repeated roughly once every 19 years. The solar calendar is calculated based on the laws of the sun and the earth. The earth revolves around the sun in a circle, which is 365 days, 5 hours, 48 minutes and 46 seconds; The lunar calendar is measured according to the laws of the movement of the earth and the moon.

The Chinese lunar calendar stipulates 30 days for the big month and 29 days for the small month, a total of 354 or 355 days in 12 months of the year, which is about 11 days less than the number of days in a return year, and more than 1 month less in 4 years. Over time, there will be strange occurrences and early phenomena of chaotic time and timing. In order to solve this problem, the method of adding "leap months" was adopted.

The Mid-Autumn Festival of the lunar calendar generally occurs between September 7 and October 6 of the solar calendar, so that the Mid-Autumn Festival and the National Day have appeared.

Zhao Zhiheng, an astronomical education expert and director of the Tianjin Astronomical Society, explained that China currently uses both the Gregorian calendar (solar calendar) and the summer calendar (lunar calendar). In the Gregorian calendar, the Earth's revolution around the Sun is one return year, 365 days in a common year and 366 days in a leap year.

The lunar calendar is a lunisolar calendar that takes into account both the solar return year that is directly related to the sun and the synodic month, which changes in aspect with the moon. The average number of days for 1 synodic month is 354 days or 355 days for 12 synodic months, which is about 11 days different from the return year, and the cumulative amount of 3 years is more than 1 month.

In order to solve the contradiction between the two, the ancients adopted the method of "intercalation", that is, in some lunar years, there are 13 months and two of the same months.

The Year of the Rat is a leap year, with the addition of a "leap April". Due to the influence of "leap April", since then, the corresponding dates of the lunar festivals in the year of Gengzi Rat, such as the Mid-Autumn Festival, will be postponed by 18 days compared with last year

The corresponding solar calendar date for the Mid-Autumn Festival in the Year of the Pig is September 13, 2019Therefore, the solar calendar date corresponding to the Mid-Autumn Festival in the Year of the Rat naturally falls to October 1, 2020

The festival is September 23 in the Gregorian calendarThis festival was established in 2018, and the festival time is the annual "code with autumn equinox". The "Chinese Farmers' Harvest Festival" was established. In order to mobilize the enthusiasm, initiative and creativity of hundreds of millions of farmers; In order to enhance the sense of honor, happiness and gain of hundreds of millions of farmers; In order to remind everyone not to waste every grain of food, not to live up to every hard work.

Who knows that Chinese food is hard work. Every grain of grain is hard to come by, and we should cherish every grain of food. When cooking, eat as much as you want; When eating, eat as much as you want; When ordering, eat as much as you want. In short, there is a way to eat, do what you can, and live within your means.

As a distinctive cultural symbol, the "Chinese Farmers' Harvest Festival" gives a new connotation of the times, which helps to publicize and display the long-standing and profound farming culture, inherit and carry forward the excellent traditional Chinese culture, promote the organic integration of traditional culture and modern civilization, and enhance cultural self-confidence and national pride.

The International Day of Awareness of Food Loss and Waste is also in September. The collision of the two can always bring us some thoughts, spring planting and autumn harvest, for us is a short four words, but for farmers, these poured their hard work for a year, swaying a year's sweat.

The Mid-Autumn Festival, also known as the Moon Festival, the Autumn Festival, the Mid-Autumn Festival, the August Festival, the August Festival, the Moon Chasing Festival, the Moon Festival, the Moon Worship Festival, the Daughter's Festival or the Reunion Festival, is a traditional cultural festival popular in many ethnic groups and countries in the Chinese character cultural circle.

The content of the Mid-Autumn Festival hand-copied newspaper can be written: Introduction to the Mid-Autumn Festival, the origin of the Mid-Autumn Festival, the main customs of the Mid-Autumn Festival, the legend of the Mid-Autumn Festival, Mid-Autumn Festival poems, etc.

Extension: 1. Introduction to the Mid-Autumn Festival: The Mid-Autumn Festival began in the early years of the Tang Dynasty, prevailed in the Song Dynasty, and became one of the major Chinese festivals on a par with the Spring Festival in the Ming and Qing dynasties.

Influenced by Chinese culture, the Mid-Autumn Festival is also a traditional festival in some countries in East and Southeast Asia, especially the local Chinese and overseas Chinese. Since 2008, the Mid-Autumn Festival has been listed as a national holiday. On May 20, 2006, it was included in the first batch of national intangible cultural heritage lists.

2. The origin of the Mid-Autumn Festival: The origin of the Mid-Autumn Festival is related to agricultural production. Autumn is the harvest season.

The interpretation of the word "autumn" is: "the crops are ripe and called autumn". In August, the Mid-Autumn Festival ripens crops and various fruits, and farmers take the "Mid-Autumn Festival" as a festival in order to celebrate the harvest and express their joy.

"Mid-Autumn Festival" is the meaning of the middle of autumn, the eighth month of the lunar calendar is the middle month of autumn, and the fifteenth day is the middle day of this month, so the Mid-Autumn Festival may be a custom inherited from the ancients' "autumn newspaper".

3. The main customs of the Mid-Autumn Festival are: admiring the moon in the Mid-Autumn Festival, eating moon cakes, tasting osmanthus cakes, etc.

4. The legend of the Mid-Autumn Festival: Wu Gang folded Gui, according to legend, there was a person named Wu Gang in the Moon Palace, who was a native of Xihe in the Han Dynasty, who had followed the immortals to cultivate and went to the heavenly realm, but he made a mistake, and the immortals degraded him to the Moon Palace, and cut down the laurel tree in front of the Moon Palace every day to show punishment. This laurel tree grows luxuriantly, more than 500 zhang high, and every time it is cut down, the place that was cut will immediately close again.

Li Bai wrote in the poem "Gift to Cui Sihu Wen Kunji": "If you want to cut the laurel in the moon, hold the salary of the cold."

5. Mid-Autumn Festival poems: "Fifteenth Night Looking at the Moon" (Tang) Wang Jian.

The atrium is white arboreal crows, and the cold dew is silent wet osmanthus. Tonight, the moon is bright, and I don't know whose house the autumn thoughts are.

This is the reason for the leap month, the calendar adopted by our country has the Gregorian calendar and the lunar calendar, and there is also a leap month in the lunar calendar to make up for the number of 365 days, and after gradually accumulating, there will be an overlap in 19 years.

It is not an exception for the Mid-Autumn Festival and the National Day to appear on the same day, and there have been several times in the 70 years since the founding of the People's Republic of China, when the Mid-Autumn Festival and the National Day were on the same day. Every nineteen years, on the same day of the lunar birthday, this situation occurs, mainly as a result of leap months. The Chinese lunar calendar uses the method of leap months to make up the number of days, arranging seven leap months in 19 years (that is, there will be 13 lunar months in a year in these seven years), so that the lunar and solar calendars basically coincide every 19 years.

I still remember that in 2001, the National Day on October 1 in the solar calendar and the Mid-Autumn Festival on August 15 in the lunar calendar were on the same day; 19 years ago, the National Day and the Mid-Autumn Festival in 1982 also coincided; 19 years ago, the Mid-Autumn Festival in 1963 was October 2, only 1 day apart, whether it is a lunar month or a solar year, their exact number of days is not an integer but a decimal number, and there is a slight difference in the number of days in the 19 years of the lunar calendar and the solar calendar. The earth revolves around the sun for one cycle, so that the actual number of days in a lunar year is about a few days less than that in a solar year.

After decades or even hundreds of years of accumulation, decimal numbers have also become large numbers, which leads to this phenomenon, but it is usually only one day away. The number of days per month in China's lunar calendar (to be precise, the lunar calendar) is established according to the cycle of moon movement, in fact, the average number of days in each lunar month is days, if multiplied by 12, there are days in a lunar year, that is, the time for the moon to revolve around the earth 12 times (12 lunar months) and the time for the earth to revolve around the sun (1 solar year) is more different.

Because the Mid-Autumn Festival is calculated according to the lunar calendar, and the National Day is fixed on October 1, it is not surprising that it will coincide with one day after a long time.

It may be that it is just repeated, after all, the time of the lunar calendar is different from the new calendar, so it is understandable that it will be repeated.

Because the lunar calendar and the solar calendar are different, just like your birthday is different every year, it is not impossible for the lunar calendar to push.

This situation will only occur once in 19 years, mainly because the National Day is calculated according to the solar calendar, and the Mid-Autumn Festival is calculated according to the lunar calendar.

It is normal for this situation to occur, because the National Day is a solar calendar, and the Mid-Autumn Festival is a lunar calendar, which can easily coincide.

It's normal, the Mid-Autumn Festival is calculated according to the lunar calendar, and the National Day is October 1st, and there is always an overlapping year, after all, the new calendar and the lunar calendar seem to have a time gap of more than a month.

It's normal, the National Day is the solar calendar, and the Mid-Autumn Festival is the lunar calendar, and the two times are relatively close, and it is very likely to be one day.

I think to celebrate the National Day and welcome the Mid-Autumn Festival, first everyone and then a small family.