Many nations had already abolished slavery.
Let me know if you want to know why.
Siddartha Gautama (buddha)
What i dont get it ....................
Plato was probably talking about a Democratic government which is composed of several leaders that are in-charge of particular cities and communities in a country. During his time, Plato is a known philosopher who spent his time discussing with people in plazas and squares arguing about almost anything under the sun.
I know this does not help but put ur mind into it and trust me u will succeed.