One of the first effects of the battle of Leuctra (B. C. 371), which ended the domination of Sparta in Greek affairs, was to emancipate the Arcadians and to work great changes among them. Mantinea, which the Spartans had destroyed, was rebuilt the same year. Then "the chiefs of the parties opposed to the Spartan interest in the principal Arcadian towns concerted a plan for securing the independence of Arcadia, and for raising it to a higher rank than it had hitherto held in the political system of Greece. With a territory more extensive than any other region of Peloponnesus, peopled by a hardy race, proud of its ancient origin and immemorial possession of the land, and of its peculiar religious traditions, Arcadia—the Greek Switzerland—had never possessed any weight in the affairs of the nation; the land only served as a thoroughfare for hostile armies, and sent forth its sons to recruit the forces of foreign powers. … The object was to unite the Arcadian people in one body, yet so as not to destroy the independence of the particular states; and with this view it was proposed to found a metropolis, to institute a national council which should be invested with supreme authority in foreign affairs, particularly with regard to peace and war, and to establish a military force for the protection of the public safety. … Within a few months after the battle of Leuctra, a meeting of Arcadians from all the principal towns was held to deliberate on the measure; and under its decree a body of colonists, collected from various quarters, proceeded to found a new city, which was to be the seat of the general government, and was called Megalepolis, or Megalopolis (the Great City). The site chosen was on the banks of the Helisson, a small stream tributary to the Alpheus. … The city was designed on a very large scale, and the magnitude of the public buildings corresponded to its extent; the theatre was the most spacious in Greece. … The population was to be drawn … from a great number of the most ancient Arcadian towns. Pausanias gives a list of forty which were required to contribute to it. The greater part of them appear to have been entirely deserted by their inhabitants." _C. Thirlwall, History of Greece, chapter 39 (volume 5)._ "The patriotic enthusiasm, however, out of which Megalopolis had first arisen, gradually became enfeebled. The city never attained that preeminence or power which its founders contemplated, and which had caused the city to be laid out on a scale too large for the population actually inhabiting it." _G. Grote, History of Greece, part 2, chapter 78._