The USGS provides free downloads of Historical Topographic Maps (HTMC). If you would like, I can:
A 7,000-year-old megalithic structure (c. 5,000 BC) was discovered off the coast of Brittany, France, revealing a 120-meter-long, 3,300-ton wall that was submerged due to sea-level rises. Ancient Islands Free Download
Research into Piraeus, Athens, demonstrates it was a distinct island during the late Neolithic period (4850–3450 BC) before becoming connected to the mainland via sea-level fluctuations. Resources for Further Study The USGS provides free downloads of Historical Topographic
on "Ancient Islands" using a particular search engine. Research into Piraeus, Athens, demonstrates it was a
Prehistoric Mediterranean islands, such as those in the Aegean or the Aeolian islands, were not isolated but served as crucial maritime hubs, with trade networks spreading pottery and goods.
Research suggests the earliest settlements in Remote Oceania originated from coastal China, with sites in the Mariana Islands dating back 3,500–3,300 years.
The study of "dry islands" (areas formerly surrounded by water, like the Isle of Ely in the UK, AD 1200–1600) shows how medieval inhabitants perceived and interacted with their environment, which is useful for reconstructing cognitive landscapes.