Husserl's enquiry into the intelligibility of the eidetic possibility of an ideal meaning formation therefore involves "historicity" in two distinct senses. One concerns the intentional history of the eidetic possibility of an invariant intentional object. Historicity in this sense is indicated at the limit of the enquiry into the invariant's sedimented history, an enquiry guided by the eidetic form of its internal temporality. This limit concerns the original presentation of an intentional unity as a meaningful unit that has not yet been modified by retention and, therefore, is not yet structured as an enduring unity within internal time. The other sense of historicity concerns the actual history that is indicated by the limit of the enquiry into the intentional history of precisely this unmodified origination of the invariant's eidetic possibility. It concerns therefore the actual history indicated when the categorial formations that manifest an ideal meaning formation are interrogated with respect to their transcendentally original constitution.