Historicity is the historical actuality of persons and events, meaning the quality of being part of history instead of being a historical myth, legend, or fiction. The historicity of a claim about the past is its factual status. Historicity denotes historical actuality, authenticity, factuality and focuses on the true value of knowledge claims about the past.
Some theoreticians characterize historicity as a dimension of all natural phenomena that take place in space and time. Other scholars characterize it as an attribute reserved to certain human occurrences, in agreement with the practice of historiography. Herbert Marcuse explained historicity as that which "defines history and thus distinguishes it from 'nature' or the 'economy'" and "signifies the meaning we intend when we say of something that is 'historical'." The Blackwell Dictionary of Western Philosophy defines historicity as "denoting the feature of our human situation by which we are located in specific concrete temporal and historical circumstances". For Wilhelm Dilthey, historicity identifies human beings as unique and concrete historical beings.