Answer:
Post-classical history (also called the post-antiquity era, post-ancient era, or pre-modern era) is a periodization commonly used by the school of "world history" instead of Middle Ages (Medieval), which is roughly synonymous.[1] The period runs from about AD 500 to 1450 though there may be regional differences and debates. The era was globally characterized by the expansion of civilizations geographically and development of networks of trade between civilizations
Explanation:
china has been maintaining policies that kept their economy very inefficient and poor. but when the forign trade came up. china was among the fastest growing economies and later they helped millions of pple out of poverty.
City dwellers faced the noise, dirt, and crime of the cities, the hardships of factory work, and the overcrowded, dangerous conditions of tenements.
Governments and city planners tried to alleviate dangerous conditions and make cities better, safer places to live.
