Some travelled up the Nile into northern Africa, potentially setting the stage for Ancient Egyptian civilizations.[1][13] There are cultural elements found in the Final Neolithic of Gebel Ramlah which overlap with or are potential precursors for Ancient Egyptian elements, such as astronomical knowledge[13] and the production of amulets.[1] Additionally, it has been argued that the evidence for passive burial conservation in Gebel Ramlah cemeteries could be a precursor for Ancient Egyptian mummification, perhaps being based in similar protective beliefs.[13]