Elvira, Mistress of the Dark

Factual error: Right before Elvira is burned at the stake, the officer pronouncing judgement on her says "By the power vested in me, by the sovereign state of Massachusetts..." Massachusetts (according to its own constitution ratified in 1780) is a commonwealth, as are Virginia, Kentucky, and Pennsylvania. Although the internal governments appear to be different, they have the same legal status as states within the United States.