Plato Critias 114

And he begat five pairs of twin sons and reared them up; and when he had divided all the island of Atlantis into ten portions, he assigned to the first-born of the eldest sons 114a his mother's dwelling and the allotment surrounding it, which was the largest and best; and him he appointed to be king over the rest, and the others to be rulers, granting to each the rule over many men and a large tract of country. And to all of them he gave names, giving to him that was eldest and king the name after which the whole island was called and the sea spoken of as the Atlantic, because the first king who then reigned had the name of Atlas. And the name of his younger twin-brother, 114b who had for his portion the extremity of the island near the pillars of Heracles up to the part of the country now called Gadeira after the name of that region, was Eumelus in Greek, but in the native tongue Gadeirus,—which fact may have given its title to the country. And of the pair that were born next he called the one Ampheres and the other Evaemon; and of the third pair the elder was named Mneseus 114c and the younger Autochthon; and of the fourth pair, he called the first Elasippus and the second Mestor; and of the fifth pair, Azaes was the name given to the elder, and Diaprepes to the second. So all these, themselves and their descendants, dwelt for many generations bearing rule over many other islands throughout the sea, and holding sway besides, as was previously stated, ¹ over the Mediterranean peoples as far as Egypt and Tuscany .
  Now a large family of distinguished sons sprang from Atlas; 114d but it was the eldest, who, as king, always passed on the scepter to the eldest of his sons, and thus they preserved the sovereignty for many generations; and the wealth they possessed was so immense that the like had never been seen before in any royal house nor will ever easily be seen again; and they were provided with everything of which provision was needed either in the city or throughout the rest of the country. For because of their headship they had a large supply of imports from abroad, 114e and the island itself furnished most of the requirements of daily life,—metals, to begin with, both the hard kind and the fusible kind, which are extracted by mining, and also that kind which is now known only by name but was more than a name then, there being mines of it in many places of the island,—I mean orichalcum, ² which was the most precious of the metals then known, except gold. It brought forth also in abundance all the timbers that a forest provides for the labors of carpenters; and of animals it produced a sufficiency, both of tame and wild.