The earliest rice sample in the world-a rice sample unearthed from Yuchanyan, Shouyan Town, Dao County, Yongzhou City, has been around 6,543.8+0.5 million years. The earliest pottery in the world-a pottery used by ancient people found in Yuchanyan, Daoxian County, Yongzhou City, has been around10.4 million years. The earliest and largest bronze musical instrument in the world-the elephant-patterned bronze cymbal unearthed from Yueshanpu Tomb in Ningxiang County, Changsha City, is 103.5cm high and weighs 2210.5 kg ... The earliest cast iron container in the world-the cast iron tripod unearthed from the Chu Tomb of the Warring States Period in Yangjiashan, Changsha, is about 2400 years ago. The earliest silk paintings in the world-The Dragon and Phoenix Silk Paintings for Figures and the Dragon Silk Paintings for Figures unearthed from the Chu Tomb and Ammunition Depot of Warring States in Chenjiadashan, Changsha, are also the earliest portraits depicting realistic figures in the world. The earliest numerology book in the world-the book unearthed from Chu Tomb of Warring States in Changsha Ammunition Depot, is also the earliest book in the world. The earliest realistic scene painting in the world, The Rites of Horses and Horses, unearthed from the No.3 Han Tomb in Mawangdui, Changsha, depicts the scene of troops being inspected before going out to war. The largest silk painting in the world —— T-shaped painted silk painting unearthed from the No.2 Han Tomb in Mawangdui, Changsha. It is 202 centimeters long. The earliest musical instrument using reeds in the world —— The reeds unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest jacquard fabric —— Duijin unearthed from No.1 Han Tomb in Mawangdui, Changsha. The world's most exquisite silk fabric-plain yarn (clothes+single clothes) unearthed from the Han Tomb No.3 in Mawangdui, Changsha, is1.90cm long and weighs only 48g.. After folding, you can put it in an ordinary matchbox. The earliest planetary record in the world-the five-star Zhan unearthed from the tomb of No.3 Han Dynasty in Mawangdui, Changsha, recorded the trajectories of Jupiter, Venus and Saturn from the first year of Qin Shihuang to Wendi for three years. The world's earliest measured scale map —— The Topographic Map of Southern Changsha and the Garrison Map unearthed from No.3 Han Tomb in Mawangdui, Changsha. The earliest complete software found in the world —— Xin Zhui, a female corpse unearthed from No.1 Han Tomb in Mawangdui, Changsha. The world's earliest medical work —— Fifty-two Prescriptions for Diseases unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest sexology book —— A health-preserving prescription unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest health atlas —— A guide map unearthed from No.3 Han Tomb in Mawangdui, Changsha. The World's Earliest Celestial Document —— Five Stars Zhan Unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest work on pulse diagnosis —— The method of pulse diagnosis unearthed from No.3 Han Tomb in Mawangdui, Changsha. The earliest comet record in the world —— Astronomical and meteorological miscellaneous occupations unearthed from No.3 Han Tomb in Mawangdui, Changsha. The earliest record of solar energy utilization in the world —— Ten questions unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest animal husbandry book-Xiangma Jing unearthed from the No.3 Han Tomb in Mawangdui, Changsha. The world's earliest medicinal plant specimens —— More than 20 kinds of medicinal plant specimens unearthed from No.1 Han Tomb in Mawangdui, Changsha. The world's earliest printed fabrics-printed colored yarn and clay gold and silver printed yarn unearthed from No.3 Han Tomb in Mawangdui, Changsha. The world's earliest porcelain-making record —— Dismissal policy unearthed from No.3 Han Tomb in Mawangdui, Changsha. The oldest record in the world-Bamboo Slips of Wu Jinian in the Three Kingdoms unearthed in Zoumalou, Changsha. The world's earliest underglaze porcelain —— The underglaze porcelain unearthed in Tongguan Town, Wangcheng County, Changsha City. There is also a pearl in Hunan-Loudi City. Meishan Dragon Palace is the highest underground cave in the world and the highest sightseeing elevator built in Wulingyuan Scenic Area of Zhangjiajie, Hunan Province-Bailong Sightseeing Elevator, which is the highest outdoor sightseeing elevator with full exposure, maximum load and fastest speed. Hunan's antimony resources rank first in the world.