Whiggish

Near-synonym: presentist

Source: wiktionary

Finally, whiggish narratives, strewn with heroes, only hinder understanding of how the world works.

Source: wiktionary

Abilafia’s article is a classic example of an old-fashioned “Whiggish” narrative. It claims a uniquely moderate and progressive advance toward the development of British institutions, traced continuously from Magna Carta and isolated from the rages and radicalism of the Continent.

Source: wiktionary

Because this whiggish view depends on the expectation of progress, liberal politicians are more suspectible to it than their conservative brethren.

Source: wiktionary