Which came first, being or the boundary? Approaching the question of the boundary through the work of Martin Heidegger

The concept of the boundary has a peculiar role in the history of philosophy.On one hand, it encapsulates the very activity of philosophy: the activity of de-limiting, of de-fining, a given phenomenon.On the other hand, the question of the boundary is rarely addressed as an explicit question of philosophical inquiry.In my talk, I wish to compensate for this taking my point of departure in the philosophy of Martin Heidegger.More specifically and inspired by Heidegger himself, I will interpret his allimportant question of being as a question of the boundary.Through this approach, I will outline how the boundary formations dominated by peras and what I term the ´distinction´ are constitutive to the question of being in Antiquity and in the long period from Latinity to the present, respectively.I will also develop Heidegger´s early and late responses to the question of being in terms of the horizon and the event as two different concepts of the boundary -both of which comes out of his critical dialogue with peras and the distinction.In the last part of my talk, I will conclude by outlining a tentative definition of the concept of the boundary as essentially posing a question, the question of the boundary itself.