The paper is a continuation of a trilogy of papers by the author on the subject of dating Gobekli Tepe. In this paper, two additional sites and some of their monuments are analyzed: Tell Qaramel and Tell Es-Sultan. They provide, along with some more evidence on the c-14 readings and structure B from Gobekli Tepe and with a more detailed examination of the Temple at Nevali Cori additional documentation and evidence as to why Gobekli Tepe is a 6th millennium BC site. In doing so, the author presents a Theory of Evolution of Early Neolithic Architecture. A new view of the burial phases of Gobekli Tepe is presented, that offers the possibility to re-examine the entire construction and burial historiography of the site.