This article entitled “History's `So it seems'” explores the potential of phenomenology for the framing of histories which privilege partcipant perspectives. The theory agenda of the article adapts insights drawn from Heidegger's ontological hermeneutic of Da-sein - the human condition of being-there and being-aware (or not aware). The theory agenda also adapts Heidegger's readings of Heraclitus. The practical agenda of the article illustrates this potential of Heidegger's phenomenology for history by contrasting `so it once seemed' senses of the Emperor Julian the Apostate's Roman pagan self-hood. The contrasts are autobiographical (Julian's Misopogon), contemporary biographical (Ammianus Marcellinus's history), and long-lag biographical (Gore Vidal's novel avowedly constrained by the sources).