With the development of globalization and the completion of airports everywhere, if we want to carry out an international tour, it can be said that it is easy, but for the ancients, if they want international travel, they often cannot succeed for various reasons, and the underdevelopment of science and technology and years of war have become the fundamental reasons why they cannot travel. However, there is such a group of people, knowing that there are tigers in the mountains, they have taken advantage of the east wind of the war to travel to foreign lands, and today we want to talk about our first international donkey friend, whose pace from Datang to Tunisia, from the Black Coast to the Persian Gulf, not only received courtesy from the local people, but also became the guest of honor of the Arab Empire at that time, providing valuable advice for the Arabs to defeat Rome's transcontinental fleet.

If we say that the Sheng Tang and the biggest battle with other countries, I think everyone has a recognized answer, that is, the Battle of Tang Andros in the great collision between the East and the West, in this battle, the Arab Empire in its heyday came into contact with the Tang Dynasty for the first time, and it was also the closest to opening the eyes to see the world. And just after this great war, a young man named Du Huan will also begin his legendary and colorful adventure.
Du Huanqi was no longer able to be examined, only that he was the nephew of du you, the famous minister of the Tang Dynasty, who was captured by the Arab army in the Battle of Theros, and after revealing his identity, the Arab Empire considered the problem of diplomatic relations between the two countries, and Du Huan himself could speak well, and was a qualified diplomat, so he treated him with courtesy and hired him to accompany the Janissaries of the Arab Empire. After that, DuHuan wandered in all directions, supposedly witnessing the fleets of the Roman Empire and pointing out that the Greek fire they used was the Chinese stone fat water, that is, oil, which contributed to the defeat of the Roman fleet.
In his travel biography "Jingxing", he has made an investigation and record of the famous Asian cities at that time, especially the big city of Baghdad, the capital of the caliphate at that time, which was described in detail:
''Big eat a Galora.'' Its Great Eater King Twilight Gate, all here. His daughter-in-law grew up, dressed in fresh clothes and relaxed. When a woman goes out, she will cover her face. No questions are asked, five o'clock a day is celebrated, meat is fasted, and killing is a merit. Wear silver bands, wear silver knives, cut off drinking, and forbid music. Those who fight each other will not be beaten, but there will be an auditorium, which will accommodate tens of thousands of people. Every seven days, the king went out to pray and ascended to the throne for the multitude: "Life is very difficult, the way of heaven is not easy, adultery is not robbery, detailed rumors, self-safety is endangered, deceitful and cruel, there is one here, and there is no great sin. Whoever fights and is killed by the enemy will be born in heaven, and he will be blessed with immeasurable blessings by killing his enemies. ''The soil is transformed, and from it flows. The law is only lenient, and the burial is only frugal. ''
After leaving Baghdad, the donkey friend set foot in Tunisia, Constantinople, Egypt, the Persian Gulf and other places, and then left the empire by boat with the Arabs, and on the journey, he hastily wrote down his impressions of the lion country, that is, Sri Lanka, and returned to his hometown. However, his book "Jing Xing Ji" was later lost due to war, and only His uncle Du You cited its observations in his own articles. It gives people a glimpse of the Middle East at that time.