The United Kingdom was the last major nation-state in the world to adopt decimal currency, 50 years ago in 1971. Why was it so slow to do so? What changed politicians' and peoples' minds about it in the 1960s? Were Britain's plans to join the EEC influential? What was the impact of South Africa, Australia and New Zealand going decimal several years earlier? Or did it simply happen because of common sense, with a decimal system so much easier to learn...