Prof. Kagan, Donald, CLCV 205, Introduction to Ancient Greek History, Fall 2007, YALE Open Courses: Yale University, Classics (Accessed 21/09/2014), http://oyc.yale.edu/classics/clcv-205/lecture-10 License: Creative Commons BY-NC-SA In this lecture, Professor Kagan finishes up his description of the Spartan constitution. He argues that Sparta had a mixed constitution and gained great power due to alliances that the Spartans made with their neighbors. After the discussion of Sparta, Professor Kagan examines Athens and the development of the Athenian constitution. In addition, he shows how different these two poleis were. Finally, Professor Kagan discusses the emergence of the hoplite class in Athens and the failure of Cylon to make himself tyrant of Athens.