Thomas Hobbes, author of "Leviathan" supported the enlightenment idea that people are naturally selfish. He said that human beings are very selfish and willing to hurt others for gain.
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
Cross multiply the awnser is 10
The "separate but equal" doctrine
During the World War II, many Americans helped in the productions of arms. Many women during this time were empowered to work in factories. The government had encouraged its citizens to save and recycle their scraps metals for arms production.