By the Cypro-Archaic the island had attracted the attention of foreign conquerors. Sargon II of Assyria (722-705 B.C.) boasted in a stele found at Kition now located in the Berlin Museum, as well as in inscriptions found at his capital of Khorsabad, that the Cypriot cities paid him tribute (see image of Semitic Museum plaster cast below right). Esarhaddon (680-699 B.C.) also claimed to have received tribute from Cyprus, but there is no evidence that Assyrian armies ever invaded the island. The 26th Dynasty Egyptian pharaoh Amasis supposedly ruled the island briefly in the sixth century B.C. but direct evidence, either written or archaeological, is lacking. After 550 B.C., Cyprus was absorbed into the Persian empire. By 521 under the rule of Darius it formed part of the Fifth Satrapy. In 499 the Ionian Revolt, an attempt to rid the Greek cities in Asia Minor of Persian domination, spread to Cyprus, only to be violently suppressed in the following year. Excavations at Palaepaphos discovered a massive stone-and-earthen siege ramp built by the Persian forces in their successful battle to take that city.