Technology has improved city life in more ways that can be told easily, the developments of phones,electricity and even sewage systems helped make the cities safer and more effective
Because of slavery,the Europeans wanted to make them work without pay
The answer is yes, definitely. The Roman empire grew so big that their sphere of influence reached even China (through trade most probably). There are so many achievements that the Roman empire can boast, one of which is none other than achitecture. You may not notice it, but if you look closely you'll see that most of the government's structures and or bank's structures have Greco-Roman touch about them.
And definitely you will notice that there are many Christians here and there - that's brought to you by the Roman empire who grew so big that when emperor Constatine decided to legalize Christianity, the religion spread like wild fire in the old world! This development still affects us up to now. Where is the pope's seat of power? Is it not in the Vatican, the heart of Rome?
All people could see the laws.
Hope it’s helpful