Where is the place of origin of cotton?
South China is definitely the first place for cotton planting in China and the cotton has been developed from the south to the north. The flax and silk fabrics in the north have been developed in an early stage which can basically satisfy the demand of people in central China and then the cotton planting is not urgent. And this is the reason why the cotton planting has been developed in the northern region so late. Mr. Zhao Gang, the economic historian in Taiwan, believes that the high cost of cotton cloth production in northwestern frontier in Tang dynasty is the reason why it fails to match with the silk and linen produced in the mainland.