In the prosperous time of Kaiyuan in the Tang Dynasty, we can feel what a prosperous time it was from a poem by Du Fu:
"I remember that in the heyday of Kaiyuan yesterday, small cities were still hiding families. Rice is fat and white, and public and private warehouses are rich. There are no wolves and tigers on the road in Kyushu, which is a good day to travel.
From this poem, we can know that ordinary people at that time could eat very comfortably, with food in their own homes and sufficient government granaries. You won't meet robbers on the road at all, after all, no one will be down and out to rob. This is also a prosperous time in one's life.
At that time, the Tang Dynasty was one of the best countries in the world, so it is no exaggeration to say that it was the strongest. It can be said that every dynasty came to worship, which was very powerful politically. Moreover, the Tang Dynasty was very open and culturally open to the outside world. Both ceramics and silk are world civilizations. It can be said that the prosperity of Kaiyuan in the Tang Dynasty can be felt in all aspects.
And the prosperity of kanggan in Qing dynasty will be a bit decadent. Politically closed to the outside world, even a piece of wood can't flow overseas; Wen Zi Prison in Daxing, accidentally written wrong, maybe the whole family is gone. It is conceivable that such a country is not much stronger.
There is also Kangxi, known as the first emperor through the ages. However, many people do not agree with this title. The reason why we have this title is to flatter Kangxi, so there is no doubt that Kangxi had this possibility in the heyday of the Qing Dynasty.