This paper analyzes democracy in post-communist Croatia over 1990Croatia over -1999Croatia over and 2000Croatia over -2011 During the first decade, political stagnation occurred under a competitive authoritarian regime. This ended abruptly and opened a critical juncture, during which free and fair elections in 2000 mark the start of Croatian democracy. Proposing a causal chain, I suggest that the election revealed the population's existent underlying preference for democracy, as captured in political culture. Internally, this preference served as a positive feedback mechanism throughout Croatia's rapid increase in democracy up until a European Union (EU) Membership offer in 2011, acceding in 2013. Externally, the EU influenced democratic progress, particularly via conditionality policies. The main aim of this historical comparative analysis is to explain which factors allowed for a rapid increase in democratic quality.Finn (2019)