How Sparta, the most powerful Greek city-state, collapsed in only 20 years. The Decline and Fall of Sparta | 11:02 toldinstone | 627K subscribers | 82,207 views | Febuary 25, 2026Chapters 0:00 Introduction 0:38 Classical Sparta 1:29 Spartan politics 2:22 Helots 3:24 Population decline 4:37 Hubris 5:25 The Battle of Leuctra 6:42 Messenia liberated 7:35 Enter Macedon 8:08 Attempts at reform 9:08 Irrelevance 9:37 Roman Sparta