What is "isonomia"

n. equal before the law; possession of equal rights; equal distribution of rights and privileges.

Isonomia (ἰσονομία "equality of political rights," from the Greek ἴσος isos, "equal," and νόμος nomos, "usage, custom, law,") was a word used by ancient Greek writers such as Herodotus and Thucydides to refer to some kind of popular government. It was subsequently eclipsed until brought back into English as isonomy ("equality of law").