The effect is that they had to rebuild all the things to make a town again.
Yes because they all tried to solve issues with war, economics, and society. The "New Deal" from FDR, the "New Frontier" by JFK, and the "Great Society" by LBJ.
You could say that, in China, everything was changing. Customs, traditions, and even food. But mostly religion. Buddhism was brought by many people who believed in the buddha. So over time, many people wanted to change the rules or the fortune or the ways of buddhism. Sometimes, even the kings or emperors changed the rules too
Cultural and charitable causes.
Making it simpler for people to sell goods
