Egypt now began to fall into the hands of Asia and was conquered first by the Assyrians and then by the Persians, but the Ethiopian kings kept their independence. Aspeluta, whose mother and sister are represented as full-blooded Negroes, ruled from 630 to 600 B.C. Horsiatef (560-525 B.C.) made nine expeditions against the warlike tribes south of Meroe, and his successor, Nastosenen (525-500 B.C.) was the one who repelled Cambyses. He also removed the capital from Nepata to Meroe, although Nepata continued to be the religious capital and the Ethiopian kings were still crowned on its golden throne. From the fifth to the second century B.C. we find the wild Sudanese tribes pressing in from the west and Greek culture penetrating from the east. King Arg-Amen (Ergamenes) showed strong Greek influences and at the same time began to employ the Ethiopian speech in writing and used a new Ethiopian alphabet. While the Ethiopian kings were still crowned at Nepata, Meroe gradually became the real capital and supported at one time four thousand artisans and two hundred thousand soldiers. It was here that the famous Candaces reigned as queens. Pliny tells us that one Candace of the time of Nero had had forty-four predecessors on the throne, while another Candace figures in the New Testament.[16] It was probably this latter Candace who warred against Rome at the time of Augustus and received unusual consideration from her formidable foe. The prestige of Ethiopia at this time was considerable throughout the world. Pseudo-Callisthenes tells an evidently fabulous story of the visit of Alexander the Great to Candace, Queen of Meroe, which nevertheless illustrates her fame: Candace will not let him enter Ethiopia and says he is not to scorn her people because they are black, for they are whiter in soul than his white folk. She sent him gold, maidens, parrots, sphinxes, and a crown of emeralds and pearls. She ruled eighty tribes, who were ready to punish those who attacked her. The Romans continued to have so much trouble with their Ethiopian frontier that finally, when Semitic mulattoes appeared in the east, the Emperor Diocletian invited the wild Sudanese tribe of Nubians (Nobadae) from the west to repel them. These Nubians eventually embraced Christianity, and northern Ethiopia came to be known in time as Nubia. The Semitic mulattoes from the east came from the highlands bordering the Red Sea and Asia. On both sides of this sea Negro blood is strongly in evidence, predominant in Africa and influential in Asia. Ludolphus, writing in the seventeenth century, says that the Abyssinians "are generally black, which [color] they most admire." Trade and war united the two shores, and merchants have passed to and fro for thirty centuries.