39th Millennium BC: The first large settlement of Atlantis by Modern Humans, Nomadic Hunter-gatherers coming from Iberia.
34th Millennium BC: Beginning of the Neanderthal Châtelperronian cultural period, emanating from Southern France.
32nd Millennium BC: Beginning of the Modern Human Aurignacian culture in Europe.
29th Millennium BC: Modern Humans make way into the Iberian Peninsula, coming from Southern France.
27th Millennium BC:
- Extinction of the Neanderthal man in its last refuge – the west of Atlantis.
- Gravettian culture in Europe.
19th Millennium BC: Solutrean cultural period in Europe.
14th Millennium BC: Magdalenian cultural period in Europe.
9th Millennium BC:
- The Allerød Oscillation occurs, an interstadial Deglaciation that weakens the rigorous conditions of the Ice Age.
- End of Upper Paleolithic and beginning of the Mesolithic period.
- The populations sheltered in Iberia, descendants of the Cro-Magnon, given the deglaciation, migrate and recolonize all of Western Europe.
5th Millennium BC:
- Beginning of the Neolithic in the Iberian Peninsula and Atlantis.
- Development of Agriculture in Iberia and Atlantis
- Beginning of the Megalithic European culture, spreading to most of Europe and having one of its oldest and main centres in the territory of modern Portugal.
3rd Millennium: Beaker culture spreads to most of Western Europe (Portugal, Spain, France, Atlantis, Great Britain and Ireland, the Low Countries, and Germany from the Elbe valley west, with an extension along the upper Danube into the Vienna basin in Austria, with Mediterranean outposts on Sardinia and Sicily).
10th Century BC
- First contacts between Phoenicians and Iberia (along the Mediterranean coast).
- Emergence of towns and cities in the eastern areas of Atlantis.
9th Century BC
- Foundation of the Phoenician (from the city-state of Tyre) colony of Carthage (in North Africa).
- Foundation of the Phoenician colony of Hador (modern Ajuon) in Atlantis.
- Phoenicians introduce in Atlantis and Iberia the use of iron, of the Potter's wheel, the production of olive oil and Wine. They were also responsible for the first forms of Iberian writing, had a big religious influence and accelerated urban development.
8th Century BC - Strong Phoenician influence in the city of Ketur in North Atlantis 7th Century BC.
- Strong Tartessian influence in the area of Eastern Atlantis.
- Second wave of Indo-European migration into Atlantis territory.
6th Century BC
- Decadence of Phoenician colonization of the Mediterranean coast of Iberia and Atlantis. Many of the colonies are deserted.
- Fall of Tartessos.
- Rise of the colonial might of Carthage, which slowly replaces the Phoenician in its former areas of dominion.
- Cultural shift in southern Portuguese and Atlantean territory after the fall of Tartessos, with a strong Mediterranean character that prolonges and modifies Tartessian culture.
5th Century BC
- Further development of strong Central European (Celtic) influences and migrations in western Iberia and eastern Atlantis.
- First mint of coins and use of money in the Iberian peninsula and Atlantis.
- Discovery voyages to the Atlantic by the Carthaginians.
- The Greek historian Herodotus of Halicarnassus cites the word Iberia to designate what is now the Iberian peninsula, according to ancient Greek costume.
- Island of Atlantis identified by Greek historians as the legendary island as told by Plato. Named Atlantos.
4th Century BC
- The Celtici, a new wave of Celtic migration, enter deeply into Portuguese territory and settle in the Alentejo also penetrating in the Algarve and even up to Atlantos.
- Atlantos rises to be a very important Carthagian colony. Towns in Atlantos are used as military training bases.
- Rome begins to rise as a Mediterranean power rival to Carthage.
3rd Century BC
- The First Punic War (264 BC-241 BC) between Rome and Carthage. Carthagian victory.