"Primary sources did not come into existence to satisfy the curiosity of historians. They derive 'natural', 'organically', as it were, or, more straightforwardly, 'in the ordinary course of events', from human beings and groups of human beings, in the past society being studied, living their lives, worshipping, decision-making, adjudicating, fornicating, going about their business or fulfilling their vocations, recording, noting, communicating, as they go, very occasionally, perhaps, with an eye on the future, but generally in accordance with immediate needs and purposes. The technical skills of the historian lie in sorting these matters out, in understanding how and why a particular source came into existence, how relevant it is to the topic under investigation and, obviously, the particular codes or language in accordance with which the particular source comes into being as a concrete artefact."