The word "China" represents China, and another interpretation is porcelain, only because Tang Dynasty porcelain is prevalent, even overseas, most of them also respect Tang Dynasty porcelain, so foreigners will use the word "China" to represent China. Before the Tang Dynasty was the Sui Dynasty, the Sui Dynasty fixed the capital luoyang, although its life span is short, but it is undeniable that the Sui Dynasty's military strength and comprehensive national strength can be ranked in the forefront, of which agriculture is particularly developed, even in modern times, it has to be impressed.
China has always been a big agricultural country, so the dynasties and dynasties have attached great importance to agriculture, the so-called "sheji", refers to the god of earth and ceres, but also used to refer to the Jiangshan, usually said Jiangshan Sheji, on behalf of the mountains and rivers, which is enough to see the importance of grain for the imperial court, can be described as the economic lifeblood of a country. Therefore, since ancient times, there has been a saying of tun grain, if you encounter a disaster year or war, you can not requisition grain at the first time, then the role of tun grain is very important, when it comes to the peak of tun grain, it must be the Sui Dynasty, as a Shangwu dynasty, the importance of grain to the imperial court is self-evident.
If the supply of grain and grass is insufficient, the probability of victory will be greatly reduced, so during the Sui Dynasty, after the Sui Emperor came to power, a large number of decrees were issued to prepare grain. Since the Sui Dynasty Emperor ascended the throne, he began to order the construction of granaries, in order to be able to hoard enough grain in case of emergency, the most famous of which is the Hanjia warehouse, which was built in 605 AD, because its granary is huge, built for up to 10 years, this granary is also located in Luoyang City, can be said to be the most important granary at the foot of Tianzi.
As a grain reserve point in the east of Luoyang, Han Jiacang coordinated the dispatch of grain on the entire front, and a thousand years later, this granary once again appeared in front of the world. When this thousand-year-old granary was opened, it was found that the total amount of grain in the reserve was amazing, of which 287 warehouse kilns were found in the Hanjia warehouse, and the grain surface in many warehouse kilns showed no signs of decay, it looked intact, and when the scientists transplanted the grain into the laboratory, it could actually take root and sprout.
The reason for this situation is that the ventilation and drainage of the granary is excellent, so that the grain in the entire granary can be guaranteed to be free from moisture and finally preserved.