The “reference to the origin is a cultural invariant” (Candau, 2001). Nevertheless each country has particular ways to process its own history. This paper analyzes one modality to tell the origen of the Argentina, in the context of the Latin American Bicentenaries. That original moment - the May Revolution in 1810 - appears represented in literary productions that have been best sellers of history. Those not-fiction books and others offiction allow to think about the problem of the genre (revisionism, enssay, parodia historical) and their relation with “the nation” like a cultural mold. A way to imagine “us” and to allow some inclusions and exclusions in the level of the identity in the time of the origin and in the present of the Bicentenary.Key Words: National imagination, memory/history.