Thanks for the link. Interesting read. Humans probably had civilizations for many years, easily more than 10,000 years, only to wiped out by catacylsmic events, so evidence of them are scant.
Yup. The end of the Ice Age flooded them out. They were probably in Sundaland, a real good/warm place to spend the Ice Age. It went underwater...some say it was Atlantis.