An interesting case of that is the stave church builders of Norway. Stave churches are marvelous woodworking achievements, and too many of them sprung up too qu

An interesting case of that is the stave church builders of Norway. Stave churches are marvelous woodworking achievements, and too many of them sprung up too quickly in the historical record. The current theory is that there were traveling bands of master craftsmen who would start the project, do the hardest parts, and teach the local peasants how to finish the job. Then they would move on to the next parish.