They were ultimately driven back into Nubia , where they established a kingdom at Napata ( 656 -- 590 ) , and , later , at Meroë ( 590 BC -- 4th century AD ) .
They were forced from Egypt back into Nubia , where they set up a kingdom at Napata ( 656 -- 590 ) , and , later , at Meroë ( 590 BC -- 4th century AD ) .