Five tour guides in Yandiling, Hunan Province

Guide words are the commentary of tour guides when guiding tourists to visit. They are tools for tour guides to exchange ideas with tourists and spread cultural knowledge to tourists. They are also one of the styles of applied writing research. The following are five essays I collected about the tour guides in Yandiling, Hunan. Welcome to learn from them.

Five tour guides in Yandiling, Hunan Province (1)

Ladies and gentlemen,

Hello everyone! Welcome to visit Yan Di Mausoleum.

Yan Di Mausoleum is one of the world-famous ancestral mausoleums. Luyuanpi, located in the west of Yanling County, Hunan Province, covers an area of 5 square kilometers. It is a scenic spot for Chinese people at home and abroad to worship their ancestors and visit.

Shennong, Yan Di is the founder of farming culture in China, and has made great contributions to the origin and reproduction of the Chinese nation. Yan Di was born in Suizhou, Hubei, and grew up in Jiang Shui, Baoji. His name is Jiang Shinian. In his later years, he traveled to the south, observed people's feelings and publicized medical treatment for the people. He was buried in Luyuanpi, Yanling County, at the end of Changsha tea town for eating money. Historical records show that there were mausoleums before the Han Dynasty, and they were enshrined in Chang in the Tang Dynasty. In the fifth year of Song Gande (AD 967), Song Taizu ascended the throne at night and dreamed of Emperor Yan, so he found a mausoleum in Luyuanpi. "Before the mausoleum was erected, a portrait was sacrificed.". By the end of the Qing Dynasty, emperors had offered sacrifices to Emperor Yan's mausoleum more than 200 times. After 1030 years and more than 20 overhauls, Yandiling was set on fire by pilgrims during the Spring Festival of 1954.

The present Yandi Mausoleum was renovated in 1986, and was listed as a national key cultural relics protection unit in 1996.

The main hall of Yandiling is divided into five entrances, the first entrance &; Mdash& ampmdash Noon Gate, when you see it, you may ask, there is a noon gate in Beijing. Why does Yandiling also have a meridian gate? Because the mausoleum hall in the Qing Dynasty was modeled after the architectural style of the Qing Palace, the meridian gate was maintained according to the principle of "repairing the old as the old", so it was the meridian gate. Passing through the meridian gate, you can see a tall white marble stone tablet standing right in front of you, engraved with three Chinese characters "Yandiling", which was inscribed for Yandiling in 1993 _ _ _. On the left side of the stone tablet lies a beautiful and docile deer, and on the right side stands an eagle spreading its wings. It turns out that Yan Di's mother's name is Nudeng. When she gave birth to a young Yan Dishi, she went to the mountains to look for wild fruits. Shi Nian woke up hungry, and the crying was heard by the Nine Xuan Empress in the sky, so she ordered Xianlu to nurse Emperor Yan. As his wet nurse, the vulture sheltered him and acted as his foster mother. These are Yan Di's other two mothers.

The second entry &; Mdash& ampmdash salute pavilion. The salute pavilion is also a place to worship graves and burn incense to worship ancestors. There is a stone altar in the middle, and the horizontal plaque "The ancestor of the nation shines on the world" hanging above the salute pavilion was inscribed by Zhou Peiyuan, vice chairman of the CPPCC National Committee. Look at the Monument Square on both sides, where there are eight royal original sacrificial monuments of the Qing Dynasty and the original monuments of the Republic of China.

Through the salute pavilion, the building behind is the main hall. The main hall is the tallest building in Yandi Mausoleum. There is a couplet hanging on two large stone columns in front of the cloister: "Developing agriculture, tasting herbs and starting medicine", which summarizes the three most important achievements of Yan Di in his life; There is a horizontal plaque hanging on the forehead of the main hall door: "Chinese descendants, don't forget your ancestors", which was written by Comrade Chen Yun at the age of 83. The main hall is the seat of the golden statue of Emperor Yan. The ancestor sat on the resplendent altar, with a kind heart and a smile, holding a bunch of ears of rice in his left hand and two ganoderma lucidum in his right hand, with a bamboo basket between his legs, which was filled with herbs he had collected. This is the embodiment of the three great achievements of Emperor Yan, which laid the foundation of industry and agriculture and initiated medicine.

Now visit the fourth one and enter the tombstone pavilion. In the middle of the tombstone pavilion, there is a white marble tablet engraved with seven Chinese characters "Tomb of Shennong in Yan Di". You may ask: Why is Emperor Yan also called Shennong? Because Emperor Yan made thunder (a primitive farm tool) and taught people to eat food, he was called Shennong. He is the pioneer of China's farming culture, and is listed as one of the three emperors and five emperors in ancient China, known as the agricultural emperor. For thousands of years, China has been based on agriculture. This monument was inscribed by Yandi Shennong on _ _ _ _ in1May, 985. Behind the pavilion is the tomb of Yan Di Shennong, where our ancestor Yan Di Shennong was buried. For thousands of years, incense has been burning in front of the tomb. Even during the ten-year catastrophe, people often came here to secretly burn incense and sacrifice.

Ok, let's take a look at the Imperial Monument Garden. The Royal Memorial Park is located in the north of the central axis of Yandi Mausoleum. It covers an area of 640 square meters and has a building area of 280 square meters. It consists of stele gallery, Jiuding terrace and Shennong merit map.

On the zhaobi in the north of Yubei Garden, there is a 40-meter-long picture of Shennong's Merits, which vividly shows the ten great achievements of Yandi Shennong in rough handwriting and freehand brushwork. The overall effect is like a framed huge hand scroll, simple and dignified, magnificent.

"String wood is an arc, chopping wood is an arrow" is a bow and arrow created by Shennong, which improves hunting tools and productivity, which is a great achievement; "Eight trigrams are sixty-four hexagrams". Shennong and chef Su Songzi studied Fu's gossip and applied it to real life, which played an important guiding role in production and life and was the second greatest achievement. "Taste all kinds of medicines and declare diseases", and Bei J is the third greatest achievement of Emperor Yan. In order to remember this great achievement of Shennong, later generations called the first medical work in China's medical history "Shennong Herbal Classic"; "Teaching people to farm and grow grain" means that Emperor Yan wanted to change the situation that the people had nothing to gain all day, and was moved by the Emperor of Heaven, so he ordered Du Fu to take a lot of food for Shennong, and he gave it to his ancestors to teach them to farm, thus solving the great event of "food is the sky for the people", which is the fourth great achievement; In order to facilitate planting and improve efficiency, Shennong invented early farm tools, which are five great achievements. After the improvement of material life, our ancestors had a strong pursuit of spiritual life. In their labor practice, they learned how to cut tung trees into a piano and string silk, and also invented the banjo, also known as Shennong Qin, to educate the people. At the end of the year and the beginning of the year, the ancestors danced Nuo dance, accompanied by banjo and bright moonlight, praying for a bumper harvest in the coming year, which was Shennong's sixth great achievement. "Building Tang Ming at the beginning and living in Xiangtu" is Shennong's seventh great achievement; The architecture in Tang Ming originated from the Bird's Nest. Rsquo birds fly out for food during the day and fly back to their nests at night to rest. Shennong thought: if people have such a fixed "nest", they will work at sunrise and rest at sunset instead of drilling caves. Shennong's eighth great achievement is "ploughing the fields to make pottery, and filling the utensils into the utensils". Take history as a mirror. "Outside" and "Road History &; Middot recorded that Shennong made pottery in Buji. He made the earliest pottery by using the principle that clay can be fixed and shaped by viscosity and fire. The invention of pottery greatly improved the living conditions of human beings; The ninth achievement is "making clothes with hemp as cloth", which has made human society take a big step towards the development of civilization; Shennong's last great achievement is that "Japan and China are the market, and the transaction is closed." Shennong created a market and advocated trading and exchanging needed commodities to meet people's needs in life and production.

Today, everyone's food, clothing, housing and transportation stems from his invention. Yan Di's pioneering and innovative spirit and selfless dedication are the foundation of the Chinese nation. Through the inheritance and development of countless ancestors, it has developed into the national spirit of the Chinese nation's hard struggle and self-improvement today.

Five Tour Guide Poems of Yandiling, Hunan Province (2)

Dear travelers and friends,

Hello everyone!

The main hall of Yandiling is divided into five entrances, the first entrance &; Mdash& ampmdash Noon Gate, when you see it, you may ask, there is a noon gate in Beijing. Why does Yandiling also have a meridian gate? Because the mausoleum hall of the Qing Dynasty is modeled after the architectural style of the Qing Palace and maintains the meridian gate according to the principle of "repairing the old as before", it has the meridian gate. Passing through the meridian gate, you can see a tall white marble stone tablet standing right in front of you, engraved with the three characters "Yandiling", which was inscribed for Yandiling in 1993. On the left side of the stone tablet lies a beautiful and docile deer, and on the right side stands an eagle spreading its wings. It turns out that Yan Di's mother's name is Nudeng. When she gave birth to a young Yan Dishi, she went to the mountains to look for wild fruits. Shi Nian woke up hungry, and the crying was heard by the Nine Xuan Empress in the sky, so she ordered Xianlu to nurse Emperor Yan. As his wet nurse, the vulture sheltered him and acted as his foster mother. This is the legend of Yan Di's other two mothers.

The second entry &; Mdash& ampmdash salute pavilion. The salute pavilion is also a place to worship graves and burn incense to worship ancestors. There is a stone altar in the middle, and the horizontal plaque "The ancestor of the nation shines on the world" hanging above the salute pavilion was inscribed by Zhou Peiyuan, vice chairman of the CPPCC National Committee. Look at the Monument Square on both sides, where there are eight royal original sacrificial monuments of the Qing Dynasty and the original monuments of the Republic of China.

Through the salute pavilion, the building behind is the main hall. The main hall is the tallest building in Yandi Mausoleum. There is a couplet hanging on two large stone columns in front of the cloister: "Developing agriculture, tasting herbs and starting medicine", which summarizes the three most important achievements of Yan Di in his life; There is a horizontal plaque hanging on the forehead of the main hall: "Chinese descendants, don't forget your ancestors", which was written by Comrade Chen Yun at the age of 83. The main hall is the seat of the golden statue of Emperor Yan. The ancestor sat on the resplendent altar, with a kind heart and a smile, holding a bunch of ears of rice in his left hand and two ganoderma lucidum in his right hand, with a bamboo basket between his legs, which was filled with herbs he had collected. This is the embodiment of the three great achievements of Emperor Yan, which laid the foundation of industry and agriculture and initiated medicine.

Five tour guides in Yandiling, Hunan Province (3)

Ladies and gentlemen: Hello! Welcome to visit Yan Di Mausoleum.

Yan Di Mausoleum is one of the world-famous ancestral mausoleums. Luyuanpi, located in the west of Yanling County, Hunan Province, covers an area of 5 square kilometers. It is a scenic spot for Chinese people at home and abroad to worship their ancestors and visit.

Shennong, Yan Di is the founder of farming culture in China, and has made great contributions to the origin and reproduction of the Chinese nation. Yan Di was born in Suizhou, Hubei, and grew up in Jiang Shui, Baoji. His name is Jiang Shinian. In his later years, he traveled to the south, observed people's feelings and publicized medical treatment for the people. He was buried in Luyuanpi, Yanling County, at the end of Changsha tea town for eating money. Historical records show that there were tombs before the Han Dynasty, and they were enshrined in Chang in the Tang Dynasty. In the fifth year of Song Gande (AD 967), Song Taizu ascended the throne at night and dreamed of Emperor Yan, so he found a mausoleum in Luyuanpi. "Before the mausoleum was erected, a portrait was sacrificed.". By the end of the Qing Dynasty, emperors had offered sacrifices to Emperor Yan's mausoleum more than 200 times. After 1030 years and more than 20 overhauls, Yandiling was set on fire by pilgrims during the Spring Festival of 1954.

The present Yandi Mausoleum was renovated in 1986, and 1996 was listed as a national key cultural relics protection unit.

The main hall of Yandiling is divided into five entrances, the first entrance &; Mdash& ampmdash Noon Gate, when you see it, you may ask, there is a noon gate in Beijing. Why does Yandiling also have a meridian gate? Because the mausoleum hall in the Qing Dynasty was modeled after the architectural style of the Qing Palace, the meridian gate was maintained according to the principle of "repairing the old as the old", so it was the meridian gate. Passing through the meridian gate, you can see a tall white marble stone tablet standing right in front of you, engraved with the three characters "Yandiling", which was inscribed for Yandiling in 1993. On the left side of the stone tablet lies a beautiful and docile deer, and on the right side stands an eagle spreading its wings. It turns out that Yan Di's mother's name is Nudeng. When she gave birth to a young Yan Dishi, she went to the mountains to look for wild fruits. Shi Nian woke up hungry, and the crying was heard by the Nine Xuan Empress in the sky, so she ordered Xianlu to nurse Emperor Yan. As his wet nurse, the vulture sheltered him and acted as his foster mother. This is the legend of Yan Di's other two mothers.

The second entry &; Mdash& ampmdash salute pavilion. The salute pavilion is also a place to worship graves and burn incense to worship ancestors. There is a stone altar in the middle, and the horizontal plaque "The ancestor of the nation shines on the world" hanging above the salute pavilion was inscribed by Zhou Peiyuan, vice chairman of the CPPCC National Committee. Look at the Monument Square on both sides, where there are eight royal original sacrificial monuments of the Qing Dynasty and the original monuments of the Republic of China. ~ The guide words of the Little Three Gorges &; Middot Shaanxi Big Wild Goose Pagoda &; Middot Huangdi Mausoleum Tour Guide Words &; Middot's guide words to Sima Qian's tomb

Through the salute pavilion, the building behind is the main hall. The main hall is the tallest building in Yandi Mausoleum. There is a couplet hanging on two large stone columns in front of the cloister: "Developing agriculture, tasting herbs and starting medicine", which summarizes the three most important achievements of Yan Di in his life; There is a horizontal plaque hanging on the forehead of the main hall: "Chinese descendants, don't forget your ancestors", which was written by Comrade Chen Yun at the age of 83. The main hall is the seat of the golden statue of Emperor Yan. The ancestor sat on the resplendent altar, with a kind heart and a smile, holding a bunch of ears of rice in his left hand and two ganoderma lucidum in his right hand, with a bamboo basket between his legs, which was filled with herbs he had collected. This is the embodiment of the three great achievements of Emperor Yan, which laid the foundation of industry and agriculture and initiated medicine.

Five tour guides in Yandiling, Hunan (4)

Ladies and gentlemen,

Hello, welcome to Zhuzhou, I'm your tour guide.

Yandiling is located in Luyuanpo, Tangtian Township, southwest of Yanling County, Hunan Province 15km, also known as the "Mausoleum". Yandiling, or Shennong, is a legendary tribal leader in ancient times, surnamed Jiang. History said that he taught people to sow and harvest grains, so he was called "Shennong". He has tasted herbs and invented medicine, so he is also a "drug god". Not only that, it is said that he also used fire to benefit mankind, made musical instruments and advocated material exchange &; Hellip& amphellip In short, in historical legends, Emperor Shennong of Yan Di was a god who was inseparable from invention in agriculture, industry, commerce, medicine, literature and other fields, so he was greatly admired and sacrificed by the descendants of the Chinese people in past dynasties. Finally, he died because he tasted the highly toxic Lysimachia christinae, and there was no cure. Jin Huangfu Mi wrote Empire Century and was buried in Changsha after his death. Song Lomi's History of Taoism says: "The end of Changsha tea town is called Chaling" (Yanling County was divided by Chaling in the Southern Song Dynasty). Yan Di Mausoleum is surrounded by ancient trees and surrounded by water. There is a "medicine washing pool" on the side of the mausoleum, which is said to be the place where Emperor Yan washed herbs, and there are several stone tablets for emperors' sacrifices in the Ming and Qing Dynasties. The scenic spots of Yandi Mausoleum include Yandi Mausoleum, Yanling Temple, Shengfeng Temple, Chongdefang Temple, Huzhen Temple, Luyuan Pavilion, Shenghuotai and other cultural landscapes, as well as natural landscapes such as Luyuan Cave, Longbei Stone, Dragon Claw Stone and Flower Pond, all of which are fascinating places.

The mausoleum area of Yandiling was called "Imperial Mountain" in ancient times, covering an area of 2.4 square kilometers. The mausoleum area is covered with green hills, with clear water flowing and towering old trees. The mausoleum hall with national architectural style is dazzling, covering an area of 3000 square meters. In 960, Song Taizu ascended the throne, visited all the ancient tombs in the world, and found Yan Diling in "Bailuyuan". In the fifth year of Gande (967), a temple was built for sacrifice. 1950, Yandiling was listed as a provincial key cultural relics protection unit. 1954, due to a pilgrim fire, the main hall was burned down. 1June, 986, the main hall of Yandiling was officially rebuilt with the approval and investment of Hunan Provincial People's Government. The rebuilt mausoleum hall is divided into five entrances: the first entrance is the meridian gate, and there are Dan's stiles and left and right cloisters as tablet rooms, which were used to talk about memorial tablets in past dynasties; The second entrance is the salute pavilion, which is an octagonal stone-based pavilion with eight stone pillars supporting the beam. There is a horizontal plaque on the pavilion, titled "The ancestor of the nation shines all over the world", and there is a couplet saying "Virtue shines for thousands of years; The exhibition has a lot to do, and incense burners are placed in the pavilion for people to salute; The third entrance is the main hall, supported by 24 stone pillars. There is a plaque in the hall that says "the descendants of the Chinese people do not forget their ancestors", and on both sides it says "Funeral, laying the foundation for industry and agriculture; Taste the precedent of herbal medicine prescription ",and the shrine in the temple enshrines the image of Yandi Shennong. The statue of Emperor Yan is a golden body, with ears of rice in his left hand and ganoderma lucidum in his right hand. In front of the statue, there is a bamboo basket full of grains and herbs. The shrine is hung with a banner of "the originator of Qitian", and the links on both sides are "the famous universe; Enze China ",the whole hall is magnificent and solemn; The fourth entrance is the tombstone pavilion, with a stone tombstone: "Tomb of Emperor Shennong in Yan Di"; The fifth entrance is the mausoleum of Emperor Yan. Yandi Shennong is one of the ancestors of the Chinese nation, so the sacrifices to Yandi's mausoleum have been extremely solemn since ancient times. According to historical records, in the Tang Dynasty, sacrifices to Yan Di's mausoleum began, and in the Song Dynasty, after the temple was built in Song Taizu, a big sacrifice was held every three years. Sacrifice was more frequent in Qing dynasty, only 4 1 time.

Around the mausoleum hall, there is a red wall more than ten feet high. Surrounded by Shengfeng Temple, Huzhenguan Temple, Angel Terrace, Chongde Square, Sacrificial Pavilion, Seasonal Sacrificial House, Yongfeng Terrace and other large-scale ancient buildings, there are Luyuan Cave, Xia Qiao, Water Pool (also known as Medicine Washing Pool), Huangyang Mountain, Dragon Claw Stone and other attractions. There are also ten scenic spots in Yanling. Namely: fragrant grass with flowers and plants (also known as Cao Weiting); Squatting on the shore, shaped like a faucet, spraying a drum bun like a flying stone dragon; Clouds, bleak as autumn rain; Sometimes there are haze around, looming, dense, sparse small pavilion haze; In spring, fine grass is everywhere, wild flowers are everywhere, yellow and white are everywhere, and red and purple are brilliant, just like brocade in the spring brocade of Zhou Fang, the destination; The mountain asked the birds and deer to be impermanent, and they were speechless. Every time there is a sacrifice, it flies away and sings. There are birds singing in Luming Literature (also known as Bailuyuan): the big camphor stands horizontally and is as hollow as a hole. Anyone can take a few seats and recite the empty camphor. The ancient trees in Luyuan are strange and bizarre. There is a fir tree in front of the mausoleum, which is divided into two branches. Around a dozen times, there are no branches and leaves. After hundreds of years of moistening, there is a tendency to make dumplings, which is called Zhang Lingmu. In the north of Lingbei, the pool water is deep and clear, and there are hundreds of scales. Every time Apollo is warm on weekdays, water and light set each other off. At night, the water and the moon blend together, and the jade is clear and clear, and it is famous for diving in Longtan. When the Beijing envoy offered sacrifices, a Ye Fei fell and the house was full of incense. Its leaves are colorful. If it is painted in wisps, it will have a different image in China. Inscription because of the pavilion: different trees fly incense (also known as flying pavilion)

The solemn Yandi Mausoleum Palace and the antique huge buildings are integrated with the natural scenery here, and the top ten scenic spots of Yandi Mausoleum make the whole Yandi Mausoleum quiet, beautiful and spectacular. Emperors of past dynasties regarded it as a sacred place, offering sacrifices and holding ceremonies every year, and Qin sent special envoys to worship it. During the Mid-Autumn Festival, many members from all over the country came to pay homage to them before their death. Crowds of people slaughter animals and burn incense to worship, but there is an endless stream all year round. As for holidays, we can see thousands of worshippers lined up neatly, filled with sacrifices, surrounded by incense and shackles, which is a spectacle.

Five Tour Guide Poems of Yandiling, Hunan Province (5)

Ladies and gentlemen,

Hello everyone! Welcome to visit Yan Di Mausoleum.

Yan Di Mausoleum is one of the world-famous ancestral mausoleums. Luyuanpi, located in the west of Yanling County, Hunan Province, covers an area of 5 square kilometers. It is a scenic spot for Chinese people at home and abroad to worship their ancestors and visit.

Shennong, Yan Di is the founder of farming culture in China, and has made great contributions to the origin and reproduction of the Chinese nation. Yan Di was born in Suizhou, Hubei, and grew up in Jiang Shui, Baoji. His name is Jiang Shinian. In his later years, he traveled to the south, observed people's feelings and publicized medical treatment for the people. He was buried in Luyuanpi, Yanling County, at the end of Changsha tea town for eating money. Historical records show that there were tombs before the Han Dynasty, and they were enshrined in Chang in the Tang Dynasty. In the fifth year of Song Gande (AD 967), Song Taizu ascended the throne at night and dreamed of Emperor Yan, so he found a mausoleum in Luyuanpi. "Before the mausoleum was erected, a portrait was sacrificed.". By the end of the Qing Dynasty, emperors had offered sacrifices to Emperor Yan's mausoleum more than 200 times. After 1030 years and more than 20 overhauls, Yandiling was set on fire by pilgrims during the Spring Festival of 1954. The present Yandi Mausoleum was renovated in 1986, and 1996 was listed as a national key cultural relics protection unit.

The main hall of Yandiling is divided into five entrances, the first entrance &; Mdash& ampmdash Noon Gate, when you see it, you may ask, there is a noon gate in Beijing. Why does Yandiling also have a meridian gate? Because the mausoleum hall in the Qing Dynasty was modeled after the architectural style of the Qing Palace, the meridian gate was maintained according to the principle of "repairing the old as the old", so it was the meridian gate. Passing through the meridian gate, you can see a tall white marble stone tablet standing right in front of you, engraved with the three characters "Yandiling", which was inscribed for Yandiling in 1993. On the left side of the stone tablet lies a beautiful and docile deer, and on the right side stands an eagle spreading its wings. It turned out that Yan Di's mother's name was female Deng. When she gave birth to a young Yan Dishi, she went to the mountains to look for wild fruits. Shi Nian woke up hungry, and the crying was heard by the Nine Xuan Empress in the sky, so she ordered Xianlu to nurse Emperor Yan. As his wet nurse, the vulture sheltered him and acted as his foster mother. This is the legend of Yan Di's other two mothers.

The second entry &; Mdash& ampmdash salute pavilion. The salute pavilion is also a place to worship graves and burn incense to worship ancestors. There is a stone altar in the middle, and the horizontal plaque "The ancestor of the nation shines on the world" hanging above the salute pavilion was inscribed by Zhou Peiyuan, vice chairman of the CPPCC National Committee. Look at the Monument Square on both sides, where there are eight royal original sacrificial monuments of the Qing Dynasty and the original monuments of the Republic of China.

~ The guide words of the Little Three Gorges &; Middot Shaanxi Big Wild Goose Pagoda &; Middot Huangdi Mausoleum Tour Guide Words &; Middot's guide words to Sima Qian's tomb

Through the salute pavilion, the building behind is the main hall. The main hall is the tallest building in Yandi Mausoleum. There is a couplet hanging on two large stone columns in front of the cloister: "Developing agriculture, tasting herbs and starting medicine", which summarizes the three most important achievements of Yan Di in his life; There is a horizontal plaque hanging on the forehead of the main hall: "Chinese descendants, don't forget your ancestors", which was written by Comrade Chen Yun at the age of 83. The main hall is the seat of the golden statue of Emperor Yan. The ancestor sat on the resplendent altar, with a kind heart and a smile, holding a bunch of ears of rice in his left hand and two ganoderma lucidum in his right hand, with a bamboo basket between his legs, which was filled with herbs he had collected. This is the embodiment of the three great achievements of Emperor Yan, which laid the foundation of industry and agriculture and initiated medicine.