Egypt is to hieroglyphics as Sumeria is to cuneiform. By definition, cuneiform is one of the oldest ways of writing and Sumer is one of the oldest known civilizations.
The end of the Peloponnesian War was when the 421 Truce treaty signed
The phrase "Join or die" means just that: Unless you decide to ally with them, they will outmatch and destroy you.
Hope that helped =)
