> The only successful exceptions I can think are is Spain after Franco died, Taiwan and South Korea but these are all rather modern. What about the UK? Mexico

> The only successful exceptions I can think are is Spain after Franco died, Taiwan and South Korea but these are all rather modern. What about the UK? Mexico is another modern example; it became democratic gradually and peacefully in the late 90s or early 2000s. There was no sudden regime change, and the formerly ruling PRI is still a major political party that runs in the (now fair) elections.