effectually disabled from throwing the weight of her fleet into the scale of Persia: Athens and Sparta, suspending their political jealousies, were united when their disunion would have been fatal; their conjunction drew after them most of the lesser states: and so the Greeks stood forth for the first time as a nation prepared to act in unison, under the leadership of Sparta (B. C. 491). That city retained her proud position till it was forfeited by the misconduct of her statesmen." _P. Smith, History of the World: Ancient, chapter 13 (volume 1)._ ALSO IN: _G. W. Cox, The Greeks and the Persians, chapter 6._ _G. Grote, History of Greece, chapter 36 (volume 4.)_ See, also, ATHENS: B. C. 501-490. GREECE: B. C. 490. The Persian Wars: Marathon. The second and greater expedition launched by Darius against the Greeks sailed from the Cilician coast in the summer of the year 490 B. C. It was under the command of two generals,—a Mede, named Datis, and the king's nephew, Artaphernes. It made the passage safely, destroying Naxos on the way, but sparing the sacred island and temple of Delos. Its landing was on the shores of Eubœa, where the city of Eretria was easily taken, its inhabitants dragged into slavery, and the first act of Persian vengeance accomplished. The expedition then sailed to the coast of Attica and came to land on the plain of Marathon, which spreads along the bay of that name. "Marathon, situated near to a bay on the eastern coast of Attica, and in a direction E. N. E. from Athens, is divided by the high ridge of Mount Pentelikus from the city, with which it communicated by two roads, one to the north, another to the south of that mountain. Of these two roads, the northern, at once the shortest and the most difficult, is 22 miles in length. … [The plain] 'is in length about six miles, in breadth never less than about one mile and a half. Two marshes bound the extremities of the plain; the southern is not very large and is almost dry at the conclusion of the great heats; but the northern, which generally covers considerably more than a square mile, offers several parts which are at all seasons impassable. Both, however, leave a broad, firm sandy beach between them and the sea. The uninterrupted flatness of the plain is hardly relieved by a single tree; and an amphitheatre of rocky hills and rugged mountains separates it from the rest of Attica." _G. Grote, History of Greece, part 2, chapter 36 (volume 4)._