 An example of boundary markers in ancient Egypt were the boundary stelae of Akhenaten.They defined the limits of the sacred city of Akhet-Aten, built by Akhenaten as the center of the Aten religious cult which he founded.Egyptologists categorize the stelae based on whether they are inscribed with the "Earlier Proclamation," a general explanation of why the location was selected and how the city would be designed, or the "Later Proclamation," which provides additional details about the perimeters of the city.