The electors, by pledge and often by law, cast their votes based on how their states vote. The candidate who wins the most votes in the state wins all the electoral votes, with the exception of Maine and Nebraska, where electoral votes can sometimes be split among candidates.
Slavery obviously. The North had more factories and they farmed food products. A large Southern export was cotton. The North also had a higher population, more cities. The South had more military bases. How many do you need?
The founder of the new world were the Spanish
That statement is true.
The research subjects usually required to follow a certain regimen, diet, or even drug consumption in order to gauge the effect that they would have after it'sall done. Sometimes, the effects actually cause several negative characteristics that might make the subjects unable to function as good as they do before the experiment.