Greece's best defense was the ring of rugged mountains which surrounded its seacoast. The Persian army had gathered at Sardis. From there to gain entrance into Greece they must follow a narrow path close to the seashore with a precipice on one side and impassable morasses and quicksands on the other. Beyond this the way widened out into a little plain and narrowed again at the other end. It was an ideal place to be held by a small army of brave men. A Council of all the states of Greece was held at the Isthmus of Corinth. There all the states except one resolved to fight to the death for their freedom. Thessaly alone, which lay first in the path of the Great King, sent earth and water to his envoys who had come to all the states in Greece to demand submission. The Council sent to guard this pass, which was named Thermopylæ, a little army of four thousand men. It was commanded by Leonidas, one of the two kings of Sparta, who led a little band of three hundred Spartans who had sworn never to retreat. Before they left Sparta, each man celebrated his own funeral rites. This little army built a wall across the pass and camped there waiting for the enemy. Before long they were seen coming, covering the whole country with army after army until the plain below the pass was filled as far as the eye could see with hordes of marching, shouting warriors. High on the mountainside a throne had been built for Xerxes where he could see and watch his armies sweep through the little force which stood in their way. His great nobles waited for the chance to display before him their leadership and the splendid equipment and discipline of the armies which they led. The first attack was made by an army of the Persians and Medes themselves, supported by archers and slingers and flanked with cohorts of magnificently appareled horsemen mounted on Arab steeds. With a wild crash of barbaric music they rushed to the charge expecting by mere weight of numbers to break through the thin line of men who manned the little wall across the path, but the slave regiments of the Persians were made up of men who were trained under the lash. They were officered by great nobles who had led self-indulgent lives of luxury and pleasure. Against them was a band of free men, every one an athlete and able to use weapons which the lighter and weaker Persians could not withstand. The onslaught broke on the spears and long swords of the Spartan warriors and in a minute there was a huddle of beaten, screaming men and plunging horses and demoralized officers. Into the broken and defeated ranks plunged the Greeks and drove them far down the plain, returning in safety to their ramparts with the loss of hardly a man. Again and again this happened and regiment after regiment from the inexhaustible forces of the Persians were hurled against the wall only to be dashed backward and driven defeated down the plain by the impenetrable line of heavy-armed Greeks. Three times did Xerxes the