Prohibition was a change in the established order, so it was by definition progressive. The labels are often misused but really that's all it is. Progressivism

Prohibition was a change in the established order, so it was by definition progressive. The labels are often misused but really that's all it is. Progressivism wants things to change, conservatism wants them to stay the same. You need a balance of both. As for examples of things that were forbidden, then allowed, then forbidden again there are already good examples in the other comments. Things around family, sexuality, forms of government. The postulat also assumes that all societies in the world are uniform and accepting/forbidding the same things.