Why did many states and empires gain more power over people and territories over the course of medieval and early modern times?

Who coined the phrase “go west and grow with the country”?

What event brought rwanda to the worlds attention in 1994?

Who were the copperheads? a. a native american tribe that rose up during the war b. northern democrats opposed to the war c. ships that ran the union blockade d. an elite force of union soldiers in the west