The Greek Dark Ages marked a period of decline following the fall of Mycenaean civilization. This era saw population decrease, loss of writing systems, and reduced cultural complexity. Around 800 BCE, a gradual recovery began, leading to the rise of city-states and political institutions. The emergence of poleis brought significant changes to Greek society. City-states developed unique political systems, with Athens embracing democracy and Sparta focusing on military prowess. This period also saw the start of Greek colonization, expanding trade networks across the Mediterranean and Black Sea regions.