Answer:
Testimonial
Explanation:
It's one of the most tried and trusted forms of advertisements. It is a scenario in which a person testifies to the possible effects of the product or services. Especially if the testifier is well known, hence the use of celebreties as in this case, an actor.
He might have done it to save his people and so that they could fight back after his death and send the people that he sent home during the war to defeat the Persians after his death.
The laws affected everyone living in Athens