This was the brave new world that the British novelist J. B. Priestley described in 1955 as ‘admass’. For many other contemporary observers it was, very simply, ‘Americanization’: the adoption in Europe of all the practices and aspirations of modern America. A radical departure though it seemed to many, this was not in fact a new experience. Europeans had been ‘Americanizing’—and dreading the thought—for at least thirty years.