India is an ancient country with a long history like China. The Buddhist culture in India also attracts Buddhist disciples from all over the world to study. For example, the Tang Priest in China went to India to learn from the West. But Indian culture is not just here. During the prosperous period of the Tang Dynasty, there was a little thing that attracted Li Shimin's attention. During the Zhenguan period, Li Shimin sent Wang Xuance, an envoy to India, and when he met the rebels who robbed him, he fought a battle. And brought India's sugar-making technology, because sugar-making produced an iron pot industry and a white sugar industry, attracting countries to purchase, so they earned a lot of money. First,? Fight? Good news

During the Zhenguan period of the Tang Dynasty, Li Shimin sent Wang Xuan to India to visit the monarch of Mojietuo. Unexpectedly, when he got there, he caught up with the death of the monarch of India. At that time, there was a riot in India, and the rebel army who robbed the red eye accidentally robbed the mission. Wang Xuan led troops to arrest the rebels and took the rebel leader back to Chang 'an to go to jail. From the outside, it seems that Datang protected peace in India, but the purpose of this mission is to learn Indian sugar-making technology. At that time, Indian sugar was the best sugar in the world. Moreover, in India, as long as there are temples with a little scale, they can make sugar technology. Because of this battle, the obstacles to learning sugar were cleared. So Wang Xuan led a sugar expert back to Datang, and the sugar technology developed by Datang was even better than Indian. Second, the iron pan industry generated by sugar making has made enough money

With the rapid development of sugar making industry, a convenient tool for boiling sugar-wide pot has been produced. The wide pot has high heat resistance, burning resistance and durability. At that time, the smelting technology in other countries was not perfect enough. Therefore, the iron pot of Datang has become a treasure in international trade. In Europe, the iron pot of Datang is a family heirloom of the nobles. Since the lifting of the sea ban, the value of wide pots has risen. As long as you sell a pot of seven cents of silver in China, it will take one or two silvers to sell to the island countries, and the farther places will be more expensive. As traders from all over the world have come to China to buy pots, the iron pot industry has earned enough money from foreigners in China. Third, the improvement of sugar-making technology has brought economic benefits < P > With the continuous research and development, the sugar-making technology has made a huge breakthrough, and China can make white sugar by using the yellow mud water-drenching sugar method. This technology seems unremarkable now, but at that time, only nobles could enjoy the white sugar. Through this technology, it can be mass-produced and enjoyed by ordinary people. Eating sugar is a necessity for every country, especially in Europe at that time. White sugar is a rare thing, and only when nobles are sick can they eat a little. With the cancellation of the sea ban, the sugar sold abroad jumped by ten thousand tons and sold to sky-high value. Therefore, the profit of sugar sold abroad makes China earn enough money from westerners every year.

From the Zhenguan period of the Tang Dynasty, Li Shimin sent envoys to India to bring sugar-making technology. The iron pot industry and the improvement of sugar-making technology promoted market economic benefits for China and brought great wealth to China. It is precisely because of the ancient people's open learning attitude that they can get so much wealth and benefit the people of China for thousands of years. The strength of a country depends not only on its strong military strength, but also on its core technology.