What is the origin and evolution of 50 years?

The origin and evolution of the word "Nian" is Oracle Bone Inscriptions's "Nian", like a person with a bundle of grain on his head. Some "Nian" characters look like rice plants above and people below. In ancient times, cereal was a general term for all kinds of cereals, just as we call all kinds of cereals "crops" or "crops" today.

Above the year is a "grain", which means crops, and below is a "person". People carry crops together, which means a bumper harvest. Pray for rain (pray for rain), pray for harvest (pray for harvest) and pray for life (pray for the smooth birth of the king's spouse) are the most abundant contents in Oracle Bone Inscriptions, reflecting the two things that the ancients were most concerned about: life and life.

Development in 2008

In ancient China, agriculture was the foundation of the country, and Emperor Yan Shennong was the leader of this era. Emperor Yan cultivated the earliest millet in China. These grains were originally wild dog tail grass, and after cultivation, they became wild fine varieties with big ears and big grains. They are cold-tolerant and warm-loving, with short growth period, suitable for growing in semi-arid climate conditions in loess areas, and are the main crops in dry land.

The ancients put forward the concept of time cycle through the observation of grain growth cycle. People divide a year into twelve months, that is, the time for the earth to go around the sun once.

Later, people divided twelve months into four seasons: spring, summer, autumn and winter. In these four seasons, the time concept of "spring planting and autumn harvest" is more clear. After the autumn harvest, the grain returned to the warehouse. As the saying goes, "Harvest in autumn and survive in winter", and the harvested grain depends on people to carry it on their shoulders. The word "nian" means that people are carrying heavy ears of grain, which means that this year is mature, harvested and harvested.