Well, there's fluff in every discipline [1]Collin Atherton
   tongue emoticon

   But study of history is as complex and intricate a field as any
   endeavor.

   The "rules of the scientific method" are solely for coming with
   physical systems. The study of history is not a physical system
   and requires different kinds of criteria for evidence.

References

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   1. https://www.facebook.com/CathertonTTU?hc_location=ufi