The main function of a history is to put in documentary form a biased version of selected references so that the aspirations and beliefs of the present can be justified by its content. Since deception is such an intrinsic part of nature the supposed evidence supporting any record of human events will be suppressed, distorted, or even manufactured to best serve the individuals effected by those events.

Human activities are inextricably implicated with the infinitely variable chaotic essence of the universe and it is entirely impossible to document any sequence of events in which they were implicated, without simplifying the complexities down to comprehensible links of supposed relevance. Whether viewed thru windows recorded in stone, tapestry, print, imagery or binary codes, each historian searches thru the chaos of temporal detritus, simplifying strands and links to the dead leaves of fallen events.

A history is then presented as if a laminar flow of time can be captured in a freeze frame, coloured by preferential bias and broken up by forces of circumstance. Any historian is bound to significantly bias any evidence by emphasizing whatever is chosen to be significant, so that what is deemed to be important in one version is barely included in another. One version of a historical record of a period of human history may present it in such a way that the influence of various religions and rulers were the shaping forces of events. The same period might be presented to promote the suggestion that politics, technology and climate were the dominant and formative influences. Any historical document can only be a deficient and biased record of one or more focuses of human self-interest. History is regularly rewritten to remove embarrassing events or to portray the participants in the fashionable lights of the times.