Which factor proved to be the most important in winning the civil war

As noted above, North was industrially more advanced than the Southern states. This industrialization proved an important factor in defeat of the South. Had the civil war not dragged for such a long time

Your answer is a distributive 

It is written in the constitution saying all beliefs are allowed in the u.s. justice will be surved to everyone no matter what the color of that person is. and that all people are equal not matter there color is the u.s. that was a lie though because black people were still treated poorly, and there were places that was white people only such as hospitals, schools, bathroom, and more.