And while the capitals of Christendom, but a few hundred miles apart, remained as far asunder as if seas had rolled between them, the great capitals Cuzco and Quito [separated by 1,230 miles] were placed by the high-roads of the Incas in immediate correspondence. Intelligence from the numerous provinces was transmitted on the wings of the wind to the Peruvian metropolis, the great locus to which all the lines of communication converged. Not an insurrectionary movement could occur, not an invasion on the remotest frontier, before the tidings were conveyed to the capital and the imperial armies were on their march across the magnificent roads of the country to suppress it. So admirable was the machinery contrived by the American despots for maintaining tranquility throughout their dominions! It may remind us of the similar institutions of ancient Rome, when, under the Caesars, she was mistress of half the world.
William H. Prcscott, The Conquest of Peru