For instance, in historical times when the Greeks referred to the great King of Persia, who was a real king and a powerful figure, a king in every sense, the word they used for him was Basileus.

比如说,在历史上,希腊人把伟大的波斯王,一个真正在各种领域,具有绝对权力的君主,称之为巴赛勒斯

耶鲁公开课 - 古希腊历史简介课程节选