Abstract
Abstract A historical sequence is said to be hyperfactual whenever it contains facts that have been proved to exist twice, that is, they exist under two alternative courses of events: the factual and the counterfactual. In such cases, we may verify whether multiple courses of action lead to the same outcome. Drawing upon an idea from Nelson Goodman, each section of this article highlights a different type of hyperfactual sequence: those resulting from the turbulence of historical turning points; those resulting from long term historical sequences; and those resulting from competing courses of action. The final section conveys how hyperfactuals represent the resistance of the multiple layers of history to the formalism of subjunctive conditionals.