Before Moon Ikjeom, there was cotton in Korea.

 "The production of cotton fabrics on the Korean Peninsula was not after Moon Ik-jeom brought cotton seeds from the Yuan Dynasty during the reign of King Gongmin of Goryeo." On the Korean Peninsula, at least before the Three Kingdoms period, cotton fabrics were produced as "first-time cotton." It was just a different breed from what Moon Ik-jeom brought in." Professor Park Sun-hee (50) of the Department of History at Sangmyeong University argues that cotton fabrics were produced in ancient Korea as well. He cited the evidence, saying, "If you look at ancient documents such as Samguksagi and Yangseo, there is a record that the side of 'Baekcheoppo' grows naturally. (Note: Cotton from southern China brought in by Mun Ik-jeom.) Until then, there was no technology to grow cotton in the southern part of China in the northern part of the country, but the technology was developed in the era of Munikjeom. At that time, Moon Ik-jeom succeeded in producing cotton on the Korean Peninsula, which is a temperate region in southern China, that is, the hot region, and succeeded in producing cotton on the Korean Peninsula. Until then, the Korean Peninsula and northern China were producing different types of cotton.) Professor Park analyzed the basic materials of Korean ancient clothing in his recent publication, "Korean ancient clothing, its prototype and identity" (knowledge industry), and revealed the origins of ancient clothing such as pants, skirts, crowns, and armor. This book is meaningful in that it systematically organizes ancient costumes that have been relatively neglected in academia. Above all, the reason why this book attracts attention is the approach of 'nationalist perspective'. Professor Park, who has been obsessed with doubles research over the past five years, argues that the date when Korea began processing and weaving hair, linen, and cotton fabrics is similar to or ahead of China. It also adds that Gojoseon made armor the fastest in East Asia based on bones, leather, and bronze. "It is a 'wrong conventional wisdom' that the ancient doubles culture of the Korean people was influenced by China. Not only doubles but also life culture as a whole, ancient Korea was forming its own culture. " Professor Park pointed out, "In the meantime, research on ancient Korean clothing has uncritically accepted and developed Lee Yeo-ja's 'Chosun Clothing High School' published in 1947 The Joseon Boksikgo, which was written in the early stages of doubles research, was based on the "preconceived notion" that Korean doubles culture would have been influenced by China or the northern people. Professor Park presented an investigation and summary of ancient relics from China and Korea to support his claim. He emphasized, "We can prove that ancient Korea was leading a culture ahead of China by using doubles as a medium."