Science and Technology Daily reported that 5 carbonized rice grains 12000 years ago were unearthed in Yuchanyan, Daoxian County, Hunan Province, which is considered as the oldest rice in the world.

Rice became one of the staple foods of China people before 12000.

The production and development of rice in China has a long history. As the staple food of China people, it has to be said for thousands of years. However, as a staple food, a considerable number of people in China do not eat rice. According to "Tying Wu Kai", in the north, "Qi, Lu, Yan, Qin and Jin people eat wheat for half, while in the south, Fujian, Zhejiang, Wu and Chu people grow wheat for 20%. It can be seen that wheat is the staple food of people in northern China, and southerners hardly eat it.

In the history of rice, the earliest people who planted rice were the Chinese ancestors in the lower reaches of the Yangtze River. As early as 7000 years ago, the primitive residents in the lower reaches of the Yangtze River in China had completely mastered the rice planting technology and took rice as their staple food.

Therefore, people began to eat rice 7000 years ago.