He advised them to write their own constitution
, is the right answer.
Explanation:
Pericles during the Golden Age of Athens was an orator, statesman and general of Athens. He is most likely to have worked when Athens was going through war such as the Persian and Peloponnesian wars. He played a significant role during the first Peloponnesian war. Moreover, in the year 449 BCE he advised the Congress Decree, which commenced to a meeting of all Greek states to examine the issue of restoring the synagogues demolished by the Persians. Though he failed in this attempt, he advised the Athenians to take responsibility in government by writing their own Constitution.
The rest only came way later on, Egypt is a dead giveaway of this answer as Egyptian Mythology is still greatly publicized in movies and other forms of pop culture.