James Madison but this is a horrible question. Yes Madison was the only writer that became President but John Jay, James Madison and Alexander Hamilton all wrote some of the Federalist Papers (Jay contributing the least) but this question can misinform one and make them believe that Madison alone wrote them which is utterly untrue. In this case the answer is Madison but Madison, Jay and Hamilton each had a hand in writing the Federalist Papers.
Answer:
Quality of life is the overall standard of life of individual or members of the family or community.
I would say that the South American continent and also the North American continent in Mesoamerica were the two sites where European colonialism mainly of the Spanish colonialists and also the Portuguese were responsible for the stealing of the natural resources and the subjugation of the native peoples like the Incas and Aztecs. While the initial conquests were brutal and barbaric, the good thing that the Spaniards did was inter-marry with the local native people and form a new society of largely mestizo or mixed people.