Silk Road:
Zhang Qian's mission to the Western Regions opened up the Silk Road and promoted the economic and cultural exchanges between the East and the West. From Chang 'an through Hexi Corridor, it is divided into north and south roads. The south road goes west from Yangguan (now southwest of Dunhuang, Gansu), passes through Shanshan (now near Robnor), along the northern foot of Kunlun Mountain, and passes through Khotan (now Hotan), Dongsha and Puli (now). The North Road runs westward from Yumenguan (now northwest of Dunhuang), passes through Che's Guo Qian (now near Turpan), travels westward along the southern foot of Tianshan Mountain, passes through Yanqi and Shule, crosses Qingji and reaches Dawan. Then go north and south to Kangju and Chae Yeon; Go southwest to Da Yue, rest in peace. Silk is the most transported commodity on this trans-Eurasian road, so it is called "Silk Road" or "Silk Road".
The Silk Road is undoubtedly one of the words of historical evolution, which first appeared in the Zhou Dynasty and Qin and Han Dynasties in China.
China is the first country in the world to raise silkworms and make silk. In BC 139, Zhang Qian, a famous diplomat and traveler of the Western Han Dynasty, led a team to the Western Regions for the first time from Chang 'an, and arrived in Loulan, Qiuci, Khotan and other places. His deputies paid friendly visits to countries such as Rest (Iran) and Body Poison (India). When returning home, the envoys of the countries visited also paid a return visit to China. Businessmen from all over the world followed closely and began to run around on the Silk Road they opened up. In 73 AD, in order to ensure the smooth flow of the Silk Road blocked by the war, Ban Chao and his 36 followers went to the Western Regions. His deputy, Gan Ying, arrived in Daqin (ancient Rome) and turned to the Persian Gulf, expanding the original Silk Road. At this point, a 10000-mile-long safe passage across vast fields, boundless deserts, fertile grasslands and steep mountains will connect Chang 'an, the ancient capital of China, with the eastern Mediterranean countries. Since then, the Silk Road has officially become China's "national road" connecting East and West.
Westerners named the Silk Road after German geographer Richthofen and German Albert. Herman, from which people extended the concept of "Silk Road" to the whole ancient economic and cultural exchanges between China and foreign countries.
The Silk Road has three concepts: the Desert Silk Road, the Maritime Silk Road and the Grassland Silk Road.
What people usually call the Silk Road is a route through Central Asia, Pamirs and West Asia. Further north is the North Road, and further south is Nanhai Road. In actual history, the Silk Road was not strictly defined, and all three routes were composed of many trunk lines and branch lines. North Road refers to the grassland highway crossing the Mongolian Plateau and Karakorum at 50 degrees north latitude. This road is mainly a westward route for herders in Central Asia, which is called North Road in history. There used to be several routes in the desert from 40 degrees north latitude west to 35 degrees south latitude, but the longest route running through the east and west at 40 degrees north latitude was regarded as the middle route of the Silk Road. People usually refer to the Silk Road in a narrow sense, that is, the caravan route recorded in historical books (the caravan of the western regions with camels as the means of transportation). The Silk Road is the most recorded in history books. This website introduces in detail. South Road basically refers to Nanhai Road which passes through India and Southeast Asia to the Red Sea and Persian Gulf. In ancient times, quite a few Southeast Asians, Persians and Arabs used this method.
For more than ten years, the ancient Silk Road linked China culture with Indian, Roman and Persian cultures, spread China's great inventions such as silk, gunpowder, papermaking and printing to the west, and introduced Buddhism, Nestorianism, Islam and related arts to China. Since ancient times, the Silk Road has been a link and bridge for friendly exchanges between Chinese and foreign people.
With the development of northwest China, the Silk Road has regained its former glory after centuries of silence. Nowadays, tourists can enjoy the beautiful scenery of the western regions along this historical road; Visiting thought-provoking historical sites, enjoying grottoes, shrines and cultural relics with rich artistic flavor ... all these will make the human body de-China, and China is taking off when the Pacific era comes. Dujiangyan:
Dujiangyan is a large-scale water conservancy project characterized by dam-free water diversion, which was built by Li Bing, the prefect of Shu County of Qin State, from 256 BC to 25 BC1year. The project adopts the method of "water diversion irrigation, flood diversion and disaster reduction", makes full use of the local geographical conditions of high northwest and low southeast, and according to the special topography, water veins and water potential at the river outlet, makes the dike, water diversion, flood discharge, sediment discharge and flow control interdependent, and ensures the full play of the comprehensive benefits of flood control, irrigation, water conveyance and social water use. For more than 2200 years, it still plays a huge role and is called "living water conservancy museum". In June 2000, Dujiangyan was listed on the World Heritage List by the UNESCO Heritage Committee.
Qin is located in the west, and the land is not as fertile as the vassal States of the Central Plains. To unify the whole country, we must build a stable grain source for ourselves and Dujiangyan, which is the need of this strategy.
. After the completion of Dujiangyan project, it provided a steady stream of military food for the Qin war, solved the problem of food self-sufficiency, and laid a strong material foundation for the reunification of Qin.