In 590 B.C.,an Egyptian army sacked Napata, compelling the Cushite court to move to a more secure location at Meroe near the sixth cataract. For several centuries thereafter, the Meroitic kingdom developed independently of Egypt, which passed successively under Persian, Greek, and, finally, Roman domination. During the height of its power in the second and third centuries B.C., Meroe extended over a region from the third cataract in the north to Sawba, near present-day Khartoum, in the south.