In the five thousand years of historical development, the ancients have created many things and technologies that can only be invented by Chinese, and unfortunately many of them have not been handed down. And the strange thing is, why are many unique technologies created by the ancients so that foreign nationalities can easily grasp them? Even the technology has been improved to be more advanced than us, who is to blame?

"Unearthed silk clothes"
Only silk, a production technology, was stolen by Europeans and Japanese through illegal means, and the world still recognized that silk produced in China was the best! So through what channels did foreigners steal silk technology? You know, this technology has long become a national secret, and it was forbidden by the emperor to enter and leave the frontier.
The first to steal success were the Japanese!
"Tang dynasty Japanese students"
Japan has an important influence on the historical development of our country, it can be said that in history, Japan has only done two things to China: one is to send "spies" or "international students" to learn the advanced technology and knowledge of the ancients, so that Japan has become more and more powerful, and the ancients often treat them as friends from afar. The other is the encroachment on our territory and the maiming of our people.
"Japanese Ancients"
Almost historically, when Japanese people come to our country, they either "steal" or "rob"! Were the ancients too nice to them? That's how silk technology was stolen by them.
"Tools for the production of silk"
At the end of the Eastern Han Dynasty, the Japanese took advantage of the war in the Central Plains to secretly come to the countryside of the Central Plains, disguised themselves as ordinary people fleeing from the countryside, and learned the techniques of silk reeling, silkworm raising, and mulberry planting from the four local girls. The four girls were simple and kind, and soon taught all the relevant techniques of silk production to the Japanese. Seeing that their goal had been achieved, the Japanese returned to Japan with the seeds of silkworms and mulberries that had been hidden in secret. Since then, the Japanese have worn their own silk.
"Japanese Silk"
If only Japan had come to steal the technology, the ancient merchants would still have been able to obtain large sums of wealth from European buyers! After all, in the beginning, the Japanese thought that silk was too expensive and could not resist the temptation of silk, and eventually used this method to steal technology. Therefore, the ancients did not expect to make money selling silk to the Japanese!
"European Silk Trading Murals"
Ever since silk was brought to Europe by merchants, Europeans fell madly in love with silk, and the price of a silk was equivalent to the same weight of gold, and the price was so high that the European emperor had to set the price of silk. Europeans initially thought that silk came from trees that could spit silk day and night as long as they were watered, until the arrival of two Indian monks, a technology that had been kept secret by the Chinese nation for more than 3,000 years, which was completely stolen by Europeans, which was inseparable from the prevalence of Buddhism at that time!
"Monk"
In 545 AD, these two Indian monks, employed by the Roman emperors of Europe, came to the southern part of our country to produce silk, using Buddhism as a cover to learn from the local people the whole set of silk reeling and silkworm breeding techniques, and also mastered the necessary tool making methods. In the end, when the two monks left the northern and southern dynasties that were at that time, they hid silkworm seeds and mulberry seeds in hollow bamboo canes and luggage racks, hiding from the ancient soldiers searching in the north. After returning to Europe, the two monks received huge rewards, and silk was no longer the exclusive "invention" of the Chinese nation!
"Received by the Roman Emperor"
In 552 AD, for the first time in European historical documents, there was a record of silk production, and this Roman emperor was also revered as the great emperor in Western history for breaking the monopoly position of silk production in China! In the whole process, Europeans are like waiting for our advanced technology to be delivered to the door by themselves, and now Europeans are completely blocking advanced technology!
"Silk and Gold"
When later dynasties sold silk to Europe, they never sold the equivalent of gold again. Correspondingly, the rural people who made money from the production of silk were also affected, and the leakage of technology caused the profit of silk to drop sharply, and europeans had a basis for bargaining. It is undeniable that silk is still a valuable commodity in ancient times, and the price of buying and selling is not affordable to ordinary rural people, although their families can produce silk, but they prefer to sell it in exchange for money.
"Spinning process"
If silk technology has always been mastered by the ancients in our country and has not been stolen by foreign countries, then rural families like this who raise silkworms and grow mulberries for a living can sell more silk, and after years of operation, the family will also have certain savings. A hundred years later, the hard-working parents will also have some gold and silver as a legacy to future generations!
"Silk products"
Only when the people are rich and the technical secrecy measures are strict, can the national strength of the dynasty be strong!