I've seen a Table of nations image that proposes the Medes came from Madai, a descendant of Japheth while the Elamites were Semitic; Answers in Genesis proposes the Chinese were the lost Canaanite tribe of Sinites who disappear from the Bible after Genesis 10; I've been intrigued by the migration of Noah's son's descendants after the Flood; we all come from AT LEAST one of Noah's sons; the Indus valley people could've come from any of those family lines; what most people don't realize is that Hamites & Semites lived together in Mesopotamia before the Akkadians got aggressive and starting taking Sumerian land; the Assyrians followed after this example; we do know mostly what happened after this