The first part of his vow was easily kept, for his troops soon defeated the Ionian army, and forced the rebels to obey him once more. When Darius heard this he was much pleased; and then, sending for his bow, he shot an arrow in the direction of Athens, to show that the punishment of the Athenians would be his next care.
As he was afraid of forgetting these enemies in the pressure of other business, he gave orders that a slave should appear before him every day while he sat at dinner, and solemnly say, "Master, remember the Athenians!"
When the preparations for this distant war were ended, the Persian army set out for Greece. In order to reach that country, it had to march a long way through the northern part of Asia Minor, cross a narrow strait called the Hellespont, and pass along the coast of the Ægean Sea, through Thrace and Scythia.
In these countries the Persian army met the fierce and warlike Scythians mounted on their fleet-footed horses, and was nearly cut to pieces. The Persians were so frightened by the attack of these foes, that they refused to go any farther, and even beat a hasty retreat.
The Persian fleet in the mean while had sailed along bravely. It soon came to the promontory formed by Mount Athos, a tall mountain which sometimes casts a shadow eighty miles long over the sea. Here a terrible tempest overtook the fleet, and the waves rose so high that six hundred vessels were dashed to pieces.
All the rest of the Persian vessels were so damaged by the storm, that it was soon decided that they had better return home. The soldiers of The Great King were of course greatly discouraged by these misfortunes; but Darius was more than ever determined to conquer Greece, and at once began to gather a second army and to build a second fleet.
The Advance of the Second Host
Darius was very busy preparing this other army to march against Greece. While the men were being drilled, he sent two messengers to the Greek towns and islands, bidding them surrender and give him earth and water.
By demanding "earth and water," Darius meant that he wanted them to recognize him as their king, and as master of all their land and vessels. The inhabitants of many of the islands and towns were so frightened by the messages sent by The Great King, that they humbly yielded; but when the messengers came to Sparta and Athens, they met with a different reception.
In both cities the people proudly replied that they were their own masters, and would not yield to the demands of the Persian king. Then, angered by the insolent command to give earth and water, the Spartans entirely forgot that the life of an ambassador is sacred. In their rage, they seized the Persians, flung one into a pit and the other into a well, and told them to take all the earth and water they wanted.
This conduct made Darius all the more angry, and he hastened his preparations as much as he could. He was so active that in a short time he was able to start out again, with an army of a hundred and twenty thousand men.
The generals of this force were Datis and Artaphernes, who were guided and advised by the traitor Hippias. The fleet was to land the army on the plain of Marathon, close by the sea, and only one day's journey from Athens.
When the Athenians heard that the Persians were coming, they immediately decided to ask the Spartans, who were now their allies, to come to their aid, and help them drive back the enemy. As there was no time to lose, they chose as their messenger a fleet-footed Athenian, who made the journey of a hundred and fifty miles in a few hours, running every step of the way, and only seldom pausing to rest.
The Spartans listened breathlessly to his tidings, and promised that they would help the Athenians; but they added, that they would not be able to start until the moon was full, for they thought that they would be beaten unless they set out at a certain time.
The Persians in the mean while were advancing rapidly, so the Athenians started out to meet them with no other help than that of their neighbors the Platæans. The whole Greek force numbered only ten thousand men, and was under the command of the ten Athenian generals who were each entitled to the leadership for a day in turn.
Among these ten Athenian generals were three remarkable men,—Miltiades, Aristides, and Themistocles. They consulted together, hoping to find a plan by which their small army could successfully oppose the Persian host, which was twelve times greater.
Themistocles.
At last Miltiades proposed a plan which might succeed, provided there was but one chief, and all obeyed him well. Aristides, who was not only a good man, but also remarkably just and wise, at once saw the importance of such a plan, and offered to give up his day's command, and to carry out his friend's orders just as if he were nothing but a common soldier.