After the ban dynasty replaced the qin dynasty, what major changes did it

The Han dynasty ruled for four centuries, a long period of domination over China . It was period of progress and some major techological innovations were first made in Han China: paper,  the suspension bridge, the wheelbarrow, deep drilling, the blast furnace, the seismograph and the moldboard plow are examples. It also adopted Confucianism as the official doctrine of the state, an event that had strategic and fundamental consequences for China; Confucianism remained the official doctrine of the empire for two millenia. The first demographic census was ordered by a Han ruler.

Many rulers of the dynasty expanded the imperial territories by conquering new peoples. They also continued to build the Great Wall , the historical defensive line of China in the north.

Explanation:

length of the cultivating season was not a problem of new england agriculture