Athenian however did not rely on the laurels of this victory. Knowing that no Persian king would leave this painful defeat unanswered, they approved the ambitious naval program of Themistoklis, using resources from the mines of Lavrion for the shipbuilding of fleet from two hundred Triiris (boats), that constituted the foundation of Athenian hegemony in the sea. The Athenians paraded with this fleet in 480 b.c. in Artemisio and overcame their Persians in narrow Salamina. During the Midean wars, and more specifically at the second expedition of the Persians, the first destruction of city, which was burned by the troops of Zerzi also occurred. Two important political physiognomies, the Themistoklis and the Aristidis were distinguished during the Median wars. Themistoklis (525-461 b.c.) decisively contributed in the upgrade of the shipping role from the Athenians. Aristidis (540-468 b.c.) was his political opponent who achieved in 483 b.c. to be ostracised. At the second Persian raid, the Athenians received an oracle from the Manteio of Delphi that they will be saved by a wooden wall. Themistoklis interpreted the wooden wall as boats, and considered that the Athenians would win provided that they gave priority to their fleet and faced their Persian at sea. Thus he convinced the Persians to attack the Greeks in the narrow channel of Salamina. Themistoklis reached the top of his force after the construction of long walls causing the envy of his political opponents, and achieved his ostracism (471 b.c) embracing the charge of midism (Filo-persian attitude). Aristidis participated in Klisthenis reforms, one of the generals of battle of Marathon, who remained in the history as just, was nominated sovereign in 489 b.c. Afterwards when it resisted to the naval program of Themistoklis, he was ostracised. Despite this, during the second Persian raid where he was also distinguished, he had actively participated and led the Athenian troops during the battle of Plataion.