1) Fact 1) Historical authenticity 
Historicity is the historical actuality of persons and events, meaning the quality of being part of history as opposed to being a historical myth, legend, or fiction. Historicity focuses on the truth value of knowledge claims about the past (denoting historical actuality, authenticity, and factuality.) The historicity of a claim about the past is ...[philosophy] Historicity in philosophy is the idea or fact that something has historical origin and developed through history: concepts, practices, values. This is opposed to the belief that the same thing, in particular normative institutions or correlated ideologies, are natural or essential and thus exist universally. Historicity relates...
historicity 1. Historical authenticity; fact. 2. The state or fact of being historically authentic. 3. Of or relating to the character of history. 4. Based on or concerned with events in history. 5. Used in the past: 'historical costumes; historical weapons'. 6. Important or famous in history.
historical authenticity.