Why is the trade route between China and other countries called "Silk Road"?

The original function of the Silk Road was to transport silk produced in ancient China. German geological geographer Richthofen wrote China. From BC 1 14 to AD 127, China, Central Asia, China and India used silk trade as the medium of this western region traffic road? Name it? The Silk Road? In other words, it is widely accepted. China is the hometown of silk. In the trade through this route, silk is the most representative commodity exported by China. Because silk products have the greatest influence on the goods transported westward on this road, it is named. ?

In The Ancient Silk Road between China and Syria, German historian Herman further extended the Silk Road to the west coast of the Mediterranean and Asia Minor, and determined the basic connotation of the Silk Road, that is, the passage from ancient China to South Asia, West Asia, Europe and North Africa through Central Asia. ?

Although the Silk Road is the product of countries along the route promoting economic and trade development, many people think that Zhang Qian's two visits to China have opened a new era of Sino-foreign exchanges. After Zhang Qian passed through the Western Regions, it officially opened the land passage from China to Europe and Africa. This road starts from Chang 'an, the capital of Han Dynasty, passes through Hexi Corridor, and then divides into two routes: one starts from Yangguan, passes through Shanshan, goes west along the northern foot of Kunlun Mountain, passes through shache, passes through Congling to the west, leaves Da Yue's family, goes to rest, and passes through the plough or enters the body poison from the south of Da Yue. The other one goes out of Yumenguan, passes through the former Cheshi country, goes west along the southern foot of Tianshan Mountain, goes out of Shule, crosses the green ridge, crosses the big bay, and reaches Kangju and Chae Yeon.

The Silk Road in a broad sense refers to the long-distance commercial, trade and cultural exchange routes that have been formed since ancient times and spread all over Eurasia, even including North Africa and East Africa. In addition to the above routes, it also includes the Maritime Silk Road, which was formed in the Southern and Northern Dynasties and played a great role in the late Ming Dynasty, and the Southern Silk Road, which appeared at the same time as the Northwest Silk Road and replaced the Northwest Silk Road as a communication channel on the road in the late Yuan Dynasty.