The Concept of Time presents Heidegger's so-called Dilthey review, widely considered the first draft of his celebrated masterpiece, Being and Time. Here Heidegger reveals his deep commitment to Wilhelm Dilthey and Count Yorck von Wartenburg. He agrees with them that historicity must be at the centre of the new philosophy to come. However, he also argues for an ontological approach to history. From this ontological turn he develops the so-called categories of Dasein. This work demonstrates Heideg