=161.= Sabaco I, having subdued Egypt, established the Twenty-fifth Dynasty. He fought with the king of Assyria for the dominion of western Asia, but was defeated by Sargon in the battle of Raphia, B. C. 718. Assyrian influence became predominant in the Delta, while the power of the Ethiopian was undisturbed only in Upper Egypt. The second king of this family was also named Sabaco. The third and last, Tir´hakeh, was the greatest of the line. He maintained war successively with three Assyrian monarchs. The first, Sennacherib, was overthrown[17] B. C. 698. His son, Esarhaddon, was successful for a time in breaking Lower Egypt into a number of tributary provinces. Tirhakeh recovered his power and reunited his kingdom; but after two years’ war with Asshur-bani-pal, the next king of Assyria, he was obliged to abdicate in favor of his son. The son was expelled, and Egypt was divided for thirty years into many petty kingdoms, which remained subject to Assyria until the death of the conqueror. =162.= For the Egyptians this was merely a change of foreign rulers. Their patriotism had long been declining, and their native army had lost its fame and valor from the time when the kings of the Twenty-second Dynasty intrusted the national defense to foreigners. The military caste became degraded, and the crown even attempted to deprive the soldiers of their lands. Egypt had become in some degree a naval power, and a commercial class had arisen to rival the soldiers and farmers. =163.= About 630 B. C., the Assyrians had to concentrate their forces at home in resistance to the Scythians; and Psammet´ichus, one of the native viceroys whom they had set up in Egypt, seized the opportunity to throw off their yoke. The great Assyrian Empire was now falling under the Median and Babylonian revolt, and its power ceased to be felt in distant provinces. Psammetichus gained victories over his brother viceroys, and established the Twenty-sixth Dynasty over all Egypt. He was an enlightened monarch, and during his reign art and science received a new impulse. =164.= Having overcome the dodecarchy by means of his Greek and Tyrian auxiliaries, he settled these foreign troops in permanent camps, the latter near Memphis, the former near the Pelusiac branch of the Nile. His native soldiery were so incensed by being thus superseded by foreign mercenaries, that many deserted and took up their residence in Ethiopia. So many foreigners of all classes now flocked to the ports of Egypt, that a new caste of dragomans, or interpreters, arose. Psammetichus caused his own son to be instructed in Greek learning, a sure sign that the barriers which had hitherto separated the intellectual life of Egypt from the rest of the world were now broken down. =165.= Those northern barbarians who had terrified the Assyrians had now overrun Palestine and threatened an invasion of Egypt; but the messengers of Psammetichus met them at Ascalon with bribes which induced them to return.