Submerged land discovered: habitat for half a million people. Sunken land may have hosted up to 500,000 people.
Ice melting around 14,500 years ago caused land masses to slowly sink. An area the size of Paraguay is said to have had optimal conditions for human life. But with the rise of the seas, this habitat has disappeared from the face of the earth. The result is remarkable: an area of 400,000 square kilometers that was once habitable now lies beneath the waters of the Indian Ocean.