In Anyang City, Henan Province, after the epidemic, spring has arrived as promised. On the fourth day of the first lunar month of the Year of Nongyin, the first of the twenty-four solar terms, the arrival of spring, the epidemic does not hide the flowers, and the spring color is coming as promised. Spring, from this day on, spring begins, everything in Vientiane is renewed, full of vitality, and everything in the world is full of new hope.
On the fourth day of the first lunar month (February 4) in the Year of Nongyin, tourists photographed plum blossoms with their mobile phones at the Citizens' Cultural Square (Liangguan Square) in the East District of Anyang City, Henan Province. As the footsteps of spring approach, the temperature begins to rise, and the plum blossoms in the square also bloom quietly, adding a good place for the public to enjoy the scenery.
Yang Qi sends winter away, and spring hits six or nine heads. Lichun, also known as "playing spring", is the first of the twenty-four solar terms, when plants begin to sprout and grow, and people begin to prepare for farming. "Standing" has the meaning of beginning, and Lichun is the beginning of spring, which means that the weather is warmer and everything is renewed. The weather on Spring Day is related to the harvest of the year, and the spring should be sunny and not cloudy, the sunny is a trillion years, and the yin is a natural disaster.
Spring hits six or nine heads, and the spring is the beginning of the sixth "nine" after the winter solstice counts nine, so there is a saying of "spring playing six or nine heads". Jiujiu Song is a traditional Chinese peasant song, also known as "counting nine", "counting nine" starts from the day after the "winter solstice" in late December of the solar calendar, counts as one "nine" every nine days, and counts until "nine nine" eighty-one days. Nine folk songs in the Central Plains: 1929 does not shoot; 3949 walks on the ice; 5969 looks at the willow along the river; 79 rivers open, 89 geese come; 99 plus 19, ploughing cattle everywhere.
In people's life and work, time is an indispensable concept, and today's people are familiar with the timing units of years, months, days, hours and minutes. How did the ancient ancestors of the continent discover the secrets of time? For the ancients, the earliest discovered unit of time should be the "day" - the sunrise and the sunrise, the day in and out. The rise and fall of the sun is a sign of a day's labor and rest, and day and night form a "day".
The "Kik Song" of the pre-Qin period records: "The sun rises and works, and the sun enters and breathes." "The rise and fall of the sun is a sign of a day of labor and rest, a day composed of day and night, which is the basic unit of the year. In Chinese characters, the word "dan" indicates that the sun has just risen, and the word "dan" is reversed to the "dusk" of the ancient character. The "Left Biography" records: "The number of days is tens, so there are ten hours." "This division of a day into ten o'clock may be related to the ten suns in ancient myths and legends.
Immediately, the clever ancients measured the length of the sun's shadow by erecting a wooden stick, discovered the mystery of the sun's movement, and formed the concept of "day" according to the phenomenon of day and night. It is relatively easy to know the sun and the moon, but it is difficult to know the seasons. It is said that the word "Xia" has not been found in the oracle bones until now. Although the word "winter" exists, it expresses the meaning of the word "final".
The wise ancient ancestors estimated the time according to the appearance of the sun, moon and stars, they observed the movement of tree shadows and house shadows under the sun, and then used the "immediate effect" method to create the initial timing observation tools, and then the ancients created timing observation tools such as gui watches and sundials, accurately discovered the cycle of the year, and found the two important time nodes of the winter solstice and the summer solstice, and gradually developed into twenty-four solar terms.
The calendar is the law of measuring longer intervals than days, specifically, the arrangement of years, months, days, and hours. The official establishment of the first lunar month in the history of the mainland is the Period of Emperor Wu of the Han Dynasty. In the first year of emperor Wu of the Han Dynasty (104 BC), the taichu calendar was changed, with the first month as the first year, and the color was still yellow. The Primeval Calendar stipulates that one year is equal to 365.2502 days and January is equal to 29.53086 days; the original October is changed to the first month of the year; the twenty-four solar terms favorable to the agricultural time are introduced; and the month without neutral gas is used as the leap month, adjusting the contradiction between the solar week and the lunar month. The Taichu Calendar is not only the first relatively complete calendar in the mainland, but also the most advanced calendar in the world at that time, and the immortal contribution of Chinese civilization to world astronomy. (Wang Jian'an Photography)