When Hippias arrived at Ecbatana in search of aid, he could not immediately see the king, but was obliged to send in a message written on a waxen tablet. This passed from hand to hand, and finally reached Darius, who, recognizing the name at the bottom of the request, graciously said that he would receive the exiled tyrant of Athens.
From: H. A. Guerber, The Story of the Greeks; edited for this online publication, by ELLOPOS BLOG
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