Athens who lived in the 5th century BC. His family was one of the richest
in he city, and their main income was he renting out of slave labour to he
state silver mines of Laurion.
Despite his aristocratic background, Callias was a supporter of the radical democrat Pericles, and he worked as Athens's foremost diplomat.
From what we know, he was ambassador at last once in Persia, during the rule of Artaxerxes I (ca.416BC).
The so called "Peace of Callias" was a truce between Greece and Persia that he negotiated.