The document traces the history and evolution of democracy from ancient city-states in Mesopotamia in 4000 BC to modern representative democracies today. It discusses early democratic systems in Greece and the Roman Republic, as well as the development of parliamentary democracy in countries like England and the establishment of republics in France and the United States. It also covers the growth of democracy worldwide in recent centuries as well as setbacks from world wars and the rise of dictatorships in the 20th century.