<prompt> Translate the following text to EnglishKatika kilele cha nguvu zake, katika karne ya pili KK, Pergamo ilikuwa mojawapo ya majiji yenye kupendeza zaidi kwenye pwani ya Aegea.  <response>: At the height of its power, in the second century b.c. , Pergamum was one of the most splendid cities on the Aegean coast. 