History is written by the victors

The term philosophy of history refers to the theoretical aspect of history, in two senses. It is customary to distinguish critical philosophy of history from speculative philosophy of history. Critical philosophy of history is the "theory" aspect of the discipline of academic history, and deals with questions such as the nature of historical evidence, the degree to which objectivity is possible, etc. Speculative philosophy of history is an area of philosophy concerning the eventual significance, if any, of human history. Furthermore, it speculates as to a possible teleological end to its development—that is, it asks if there is a design, purpose, directive principle, or finality in the processes of human history. Part of Marxism, for example, is speculative philosophy of history. Another example is "historiosophy", the term coined in 1838 by August Cieszkowski to describe his understanding of history. Though there is some overlap between the two aspects, they can usually be distinguished; modern professional historians tend to be skeptical about speculative philosophy of history.

Sometimes critical philosophy of history is included under historiography. Philosophy of history should not be confused with the history of philosophy, which is the study of the development of philosophical ideas in their historical context.

Speculative philosophy of history asks several basic questions:

In his Poetics, Aristotle (384–322 BCE) maintained the superiority of poetry over history because poetry speaks of what must or should be true rather than merely what is true. This reflects early Axial Age concerns (good/bad, right/wrong) rather than metaphysical concerns for what "is". Accordingly, classical historians felt a duty to ennoble the world. In keeping with philosophy of history, it is clear that their philosophy of value imposed upon their process of writing history—philosophy influenced method and hence product.

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