The book explores the emergence and development of the theme and problem of historicity in Heidegger's work from the earliest to his last writings. It starts with his confrontation and elaboration of hermeneutics, where he seeks an approach to the problem of the historical in and for philosophy, that can bridge the static division between a systematic and a historical approach. It analyses in detail the different conceptions of temporality in his work, including the essential idea of kairological time, from the early readings of Aristotle to his late thinking of the Ereignis. It also deals with the complex issue of the understanding of truth as a partly historical category. In a long indepth chapter on Beiträge it shows how this work takes his earlier preoccupation with the historicity of Dasein to new levels, which transforms the very way that philosophical thinking is conceived.