How did the second great schism lead to the end of medieval europe?

What was the main argument of plessy in plessy v. ferguson

Characteristics of what type of economic system are being described below? 1.economy in which some/all of the basic economic questions answered by central authority 2.trade generally limited to what is produced through the influence of the government a.command economies. b.market economies. c.traditional economies.

What is the definition of federalism