'''Abductive reasoning''' or '''abduction''' infers unseen facts, events, or [[Cause and effect|causes]] in the past from clues or facts in the present. It is a type of reasoning used by [[historical science|historical scientists]] when they reason from clues back to causes.<ref name="OfClues">{{Cite book | '''Abductive reasoning''' or '''abduction''' infers unseen facts, events, or [[Cause and effect|causes]] in the past from clues or facts in the present. It is a type of reasoning used by [[historical science|historical scientists]] when they reason from clues back to causes.<ref name="OfClues">{{Cite book |