This immense Continent was Submerged after the Cataclysm that happened ~11,600 years ago ending the Last Ice Age. A very different geographical world was revealed because the Sea Levels were roughly 100 meters lower than today.   Sundaland was as big as the whole of the United States, including Hawaii and Alaska.  

Here is the Landmass that was believed to be exposed during the Last Glaciation Period.

Here the equivalent of the Mercator Map on how the World looked during the Last Ice Age.   North America and most of Europe and top Asia were Covered in Ice.

Here with official images released of the ocean´s seafloor, it becomes obvious how Indonesia would become an immense continent during the Ice Age.

The controversy surrounding the Piri Reis map is not just about how the 16th century Turkish cartographer managed to draw an accurate map of the Antarctic region 300 years prior to its supposed discovery, but also on how the map shows the land mass and coastline of the Antarctic region before it was covered in...

Here is another Mention of the Antichthon Landmass, the Origin of Paradise.   The world view of the earliest Roman geographer Pomponius Mela, who, although of Spanish birth wrote a brief work that agrees with most of its views with the great Greek writers from Eratosthenes to Strabo. However, Mela departs from the traditional ancient...