What was the supreme court's reasoning in brown v. board of education? how important was the court's ruling in advancing civil rights

How did the union blockade of the southern coast affect the confederacy? it forced the confederacy to build new railroads. it contributed to shortages of weapons and food. it encouraged europe to trade with the south. it halted all trade, leaving the south without supplies.

Why did jefferson make the louisiana purchase?

Why did the other allies like great britain and france not support wilsons 14 points?