Atlantean Maps of the Ancient Sea Kings World Central area of Atlantic indicates "Sea Kings" areas evidently well-known and mapped in last warm stage of the last Ice Age: Lighter grey indicates less well known areas (Behring Landbridge was indicated while it was still up, but left off more recent maps) and darker grey areas were incompletely or inadequately known. Antarctica was evidently mapped by whaling expeditions.
This theory has it that the collection of maps used in Maps of the Ancient Sea Kings are not all contemporaneous, that they contain interglacial, glacial and postglacial (Holocene) geographical references. Some of the maps do seem to indicate conditions during and just prior to the Younger Dryas: my impression was that the oldest ones had a pretty good knowledge of the Mediterranean and Gulf of Mexico/Caribbean areas. Therefore the area reflects Donnelly's Atlantean Empire rather well.
Atlantis, The Mother of Empires, 1939, which takes Spence's multiple migrations out of Atlantis and associates the migrations with different cultural levels on a steadily-sinking Atlantis. This stage associated with the Magdalenians in Europe was also supposed to have eventually resulted in the American Mound-Builders and even the early Egyptians (pre-Pyramid stage), Since I had more recently gone once again into the territory of Magdalenians being connected to Moundbuilders (Hopewellians in particular), I thought it would be a good idea to trot the map out again. Graham Hancock’s book Underworld (2002) notes a sudden influx of glacial meltwater at about 16000 to 14000 years ago as the first of three “Global Superfloods”, each of the three being derived from the melting of the continental glaciers, in stages.
