 Adopting the terminology ‘actualist quantification’ and ‘possibilist quantification’ by Fitting and Mendelsohn (1998) to the temporal case, we may refer to the first kind of quantification as presentist quantification and use the term eternalist quantification for the latter. Depending on the choice between these options, the sentence “Every human is born after 1888”, for instance, can be true or false. It is true if we quantify only over those humans that are currently alive; but it is false if we quantify over all humans in the temporal history of the world, including those that have ever lived. A further issue arising here concerns fictitious entities, such as Santa Claus or Pippi Longstocking, which do not actually exist at any time instant. Still, they may be said to exist in a broader sense, and one may want to include them in the domain of quantification. We set this issue aside here and refer the reader to the entry on free logic, which is a logic that allows reference to non-existing entities (cf. also Section 8.6).