Yes, there must be, but more cotton products began to appear after the Southern Song Dynasty. Cotton planting first appeared in indus valley civilization in 5-4 thousand BC. Around the 9th century, the Moors introduced the cotton planting method to Spain. In the15th century, cotton was introduced to Britain and then to the British colonies in North America. In fact, the indigenous people of Central America have long known how to use cotton to weave clothes and blankets. /kloc-In the 6th century, the Spanish entered southern Mexico and Yucatan Peninsula and found that the local cotton planting industry was very developed. The islanders spun colored cotton into homespun and made them into local clothes. \ x0d \ x0d \ At least before 2000, cotton fibers were used as textile raw materials in Guangxi, Yunnan and Xinjiang. But in the Central Plains, people only regarded cotton as an ornamental plant at first, and did not realize its economic value. Suleiman, a famous Arab traveler in the 9th century, recorded in his Travels of Suleiman that the cotton seen in Beijing today is still regarded as the "flower" in the garden. "Biography of Liang Shu Gaochang" records that "the grass is really like a cocoon, and the silk in the cocoon is as thin as a row, which is called a white pile." It can be seen that cotton, an important raw material in today's textile industry, was originally regarded as flowers and plants. \ x0d \ x0d \ cotton was introduced into China in about three different ways. According to the analysis of flora and historical data, it is generally believed that cotton spread to the Central Plains from north to south. South Road is the first batch of Asian cotton from India, which was introduced to Hainan Island and Guangdong and Guangxi through Southeast Asia. According to historical records, it was introduced to Fujian, Guangdong, Sichuan and other places at least during the Qin and Han Dynasties. The second route was introduced from India to Yunnan through Myanmar, about the Qin and Han Dynasties. The third way is that African cotton was introduced into Xinjiang and Hexi Corridor through West Asia. During the Northern and Southern Dynasties, the north road was the ancient book "The Story of the Western Regions". During the Song and Yuan Dynasties, cotton spread to vast areas in the Yangtze and Yellow River basins. By the13rd century, cotton from the North Road had spread to the Weishui Basin in Shaanxi Province. \ x0d \ x0d \ Due to the poor quality and low yield of African cotton and Asian cotton, China introduced improved varieties of upland cotton from the United States in the late Qing Dynasty, and now all upland cotton and its varieties are planted in China. \ x0d \ x0d \ Historical documents and unearthed cultural relics prove that people of all ethnic groups in China's border areas planted and utilized cotton much earlier than the Central Plains. Until the Han Dynasty, cotton textiles in the Central Plains were still scarce and precious. During the Tang and Song Dynasties, cotton began to be transplanted to the Central Plains. At present, the earliest cotton textile relic seen in the Central Plains is a cotton blanket found in an ancient tomb in the Southern Song Dynasty. That is, from this period, cotton cloth gradually replaced silk and became the main clothing material of our people. In the early years of the Yuan Dynasty, the government set up a kapok lifting department to collect cotton goods from the people on a large scale, with as many as 654.38+10,000 pieces per year. Later, cotton was regarded as the first summer tax (cloth, silk, silk, cotton), which shows that cotton has become the main textile material. After the Yuan Dynasty, the rulers tried their best to collect cotton cloth, published books on cotton planting techniques, and persuaded people to plant cotton. According to the Ming Dynasty Song Dynasty's Heavenly Creations, "Every inch of cotton cloth can be obtained" and "there must be ten looms", it can be known that cotton planting and cotton textiles were all over the country at that time. \ x0d \ x0d \ In the history of cotton planting in China, four cultivated varieties have been planted: island cotton (long-staple cotton), Asian cotton (coarse-staple cotton), upland cotton (fine-staple cotton) and grass cotton (coarse-staple cotton). In different historical periods, the main cultivated varieties in China are also different. Asian cotton has the longest introduction history, the longest planting time and a wide planting area. Upland cotton was introduced into China for a short time, but it developed rapidly, replacing Asian cotton in 1950s. At present, most of the cotton planted in the vast cotton areas is upland cotton (fine wool cotton), and a small amount of island cotton (long wool cotton) is also planted in Xinjiang.