Tang Dynasty: Jian Zhen travelled eastward, and Xuanzang went to India to learn from the scriptures.

Ming Dynasty: Zheng He's voyages to the West: the second year of the Western Han Dynasty-the third year of Yuanshuo.

(original 139—— original 126)

Yuanshou four years

(1 19) Zhang Qian made two missions to the western regions, and arrived in Dawan, Da Yue, Kangju, Daxia, Rest in Peace and other countries, and began large-scale exchanges between China and countries in Central Asia and West Asia.

The first year of Tian Han

(Former 100) Emperor Wu of the Han Dynasty sent warships to attack North Korea. Since then, four counties, Fan Zhen, Lintun, Le Lang and Xuantu, have been established in the Wei's Korean-ruled area, keeping close contact with China and North Korea, and the Chinese culture has a significant influence on North Korea.

Emperor Wu of Han dynasty

(1 century ago) Emperor Wu of the Han Dynasty set up three counties, Jiaozhi, Jiuzhen and Rinan, in northern Vietnam, and started the close contact between China and Vietnam in the early days.

The first year of Shou Yuan

(Two years ago) Indian Buddhism was introduced into China through the two river basins, and later it gradually became an important part of China's traditional culture.

Emperor Wu of Han dynasty

(BC 1 century) The earliest record of contacts between diplomatic envoys of more than 30 countries in Japan and Chinese and Japanese diplomatic envoys in the Han Dynasty.