Final answer:
The author used two key details about life in Ancient Greece, namely strength and skill in war, and skill in rhetoric, to shape the character of Chares.
Step-by-step explanation:
The author used two key details about life in Ancient Greece to shape the character of Chares. Firstly, the Greeks placed a great emphasis on strength and skill in war, seeing it as a way for men to dominate others. This influenced the character of Chares, who likely possessed these qualities and used them to establish his authority. Secondly, the Greeks valued skill in rhetoric, the ability to persuade others. Chares would have been expected to possess this skill as well, using it to convince potential allies.