Figure 2

Map of the northern part of the African continent. The 30th parallel north is indicated in red. In the west on this parallel, the sea mountains Great Meteor and the Cruiser Mountains are located in the Atlantic. In the east on this parallel, we find the Giza plateau with the three pyramids of Khufu (Cheops), Khafre (Chephren) and Menkaure (Mykerinos). The distance between the sea mountains and the pyramids, measured between the meridians of longitude, is an exact 60º. Geodetic precision like this indicates ancient geographical knowledge which includes knowledge of the circumference of the earth; it also shows that we are dealing with an explicit reference by the Ancient Egyptians to the cradle of their civilization.