The earliest civilization in the Aegean region emerged on the large island of Crete, southeast of the Greek mainland. (Ch. 4/Pg. 75: The Essential World History-Volume I: To 1800: Third Edition-William J. Duiker & Jackson J. Spielvogel).
His assassination caused WWl
Economic factors , nationalist factors
Athens permitted citizens to take part directly in day-to-day affairs of government and became the worlds first democracy.
Direct Democracy is where the participating citizens are allowed to vote on legislation directly. This was the type of democracy Athens practiced and it was the first of its kind in the known world.