1. If you go from the west of Pamirs to Sogdia, the southwest passes through important commercial cities such as Mulu, the old capital, Xie, Manchu and Winter Palace, that is, Dasslo. Starting from Xiluo, the branch of Daluo River can reach Antioch, palmira, Damascus and even Plow West along the Tigris River to the south.

2. If you start from Pishan, you will cross the suspension, pass through Jianbin and Wuyishan, then pass through Kamania and Persia, and also reach the branch of the Persian Gulf;

3. If you go further north, that is, from the north of Tianshan Mountain through Wusun and the middle reaches of Dawan Xihe River, you must also pass through the rest of the eastern gateway Mulu;

4. If you go by sea, the sea route from the ports on the west coast of the South Asian subcontinent to Tiaozhi via the Persian Gulf is much closer than that from the Arabian Sea and the Red Sea to Daqin.

Extended data:

The historical significance of the Silk Road;

1. The caravan on the Silk Road brought rare animals, plants, leather goods, medicinal materials, spices and jewels from the west, and then brought silk, tea, porcelain and other commodities from China, which enriched the daily life of people all over the world.

2. After the opening of the Silk Road, technologies such as cast iron smelting and sinking in the Central Plains were introduced to the Western Regions, which promoted the improvement of social production level and economic development in the Western Regions; China's four great inventions, silk weaving technology and lacquerware technology also spread to all parts of the world through the Silk Road, which promoted the process of world civilization.

3. Persia, Rome and other empires also sent envoys to China, which promoted cultural exchanges between China and the West.

4. Buddhism, Zoroastrianism, Manichaeism and Nestorianism also came to China along the Silk Road, which became the beliefs of many people and spread to Asian countries such as the Korean Peninsula and Japan along the branches of the Silk Road. In addition, the Silk Road is also of great significance in promoting national integration and artistic and cultural exchanges.