How did european expansion create the first global economic system?

He u.s. constitution (1787) establishes a national legislature with powers to “create national law”, a national executive with the power to “enforce national law”, and a national judiciary branch with the power to “interpret national and state policies” to see whether or not they violate the national constitution. this term describes the division of governmental authority into semi-independent bodies?

Round arches allowed the romans to create structures with

Which of these belongs to the united states after the spanish american war ?