What was ancient democracy like? Why did it spread in ancient Greece? An astonishing number of volumes have been devoted to the well-attested Athenian case, while non-Athenian democracy - for which evidence is harder to come by - has received only fleeting attention. Nevertheless, there exists a scattered body of ancient material regarding democracy beyond Athens, from ancient literary authors and epigraphic documents to archaeological evidence, out of which one can build an understanding of the phenomenon. This book presents a detailed study of ancient Greek democracy in the Classical period (480-323 BC), focusing on examples outside Athens. It has three main goals: to identify where and when democratic governments established themselves in ancient Greek city-states; to explain why democracy spread to many parts of Greece in this period; and to further our understanding of the nature of ancient democracy by studying its practices beyond Athens.