When did the hierarchy appear in Britain?

The emergence of hierarchy is the development of human beings from the end of primitive to private ownership, so the subject of the problem here is not what Britain is, but the islands and other regions of Great Britain. At present, the development of British civilization is relatively slow, and the primitive society lasts for a long time, and there are also repetitions. For example, when the savage Saxons invaded Britain under Roman rule. Moreover, as far as the stage of primitive society is concerned, there is considerable controversy at present. On the premise of Marx's presupposition of social and historical stages, the relative answer is the end of primitive society. I hope I have not misunderstood your question.