During the industrialization, England's population almost tripled. It means that the birth rate was high and the death rate must have been low. Pre-modern era, though, was a very dark place with low life expectancy and woman had to provide children almost as an obligation. Also, we weren't provided with the technology or cultural knowledge that allows us to live longer and avoid diseases.
I'm pretty sure that it is - It allowed people in the territories of Kansas and Nebraska to decide for themselves whether or not to allow slavery within their borders.
