The Thirteenth; Fourteenth and Fifteenth ammendmends were all important but the Fifteenth amendment is the most important of the three because It prohibits discrimination in voting rights on the basis of race, color or previous conditions of slavery and voting was allowed in some states of the US at that time providing some requirements.
North was antislavery; South was pro-slavery. North was business and trade oriented; South was agrarian. ... They wanted slavery to end in all of the United States.
