Unbeknownst to most people, the origins of mankind are very thoroughly documented. Many people can trace their lineage all the way back to Adam and Eve and modern day DNA tests are proving the Scriptural genealogy accounts beginning in Genesis 5:32 to be true.
Genesis 5:32 gives a detailed genealogy from Adam and Eve all the way to Noah and the time of the Great Flood. All those "begats" that seem so pointless and redundant when you're reading the Bible are very specific details that are confirmed in bloodlines today.
Noah's Ark is not a myth, like some people choose to believe. The Bible describes Noah's Ark landing on Mount Ararat in modern day Turkey. There is a site near the mountain some are claiming was the site but I personally don't believe it is the true site. I have seen aerial video footage and photographs with my own eyes showing the outline and pieces of the gigantic ship encased in thick ice atop the mountain. Either way, it was or is there somewhere. Some say it is buried in ice, which I believe. Yahweh does not want us to believe and trust in Him because with have seen proof with our eyes. If he wanted that, He could easily do that, but he is looking for fellowship, companionship, and love. He created us and knows that love cannot be commanded with force. He gives us the choice, created our world, and is allowing us to live right now.
Noah's sons were Shem, Ham and Japheth (Genesis 5:32).
Japheth (Genesis 10:1-5) Light Skinned (white) - went north into modern day Europe and Russia. One son, Gomer, is believed by some scholars to be the patriarch of Germany. Mesech, is believed to be Moscow. Greece and Great Britain. The word Caucasian derives from the Caucus mountains of Russia. Spain was occupied by Japheth but was invaded by Muslims (Shem's).
Ham (Genesis 10:6-20) Dark Skinned - went south to Africa, Babylon, Ethiopia, Kush, Misraim (Egypt), Put, Canaan. See 1 Chronicles 1:11-12 for Mitsrayam and the Philistines. Psalm 78:51, Jeremiah 13.
Shem (Genes 10:22-31) - went east to Uz (Job), Eber (Gen. 11:17-25) was the ancestor of Abraham, ancestor of the Hebrew people. The term anti-semites, or people against the Jews, derives from Shem (anti-Shem-ites). Some scholars claim that some of them went east to Alaska and America, being the ancestors of the Native American Indians and other ancient cultures.
In summary, like Rev. Breaker explains here, no one's blood line is 100% pure today. Our tribes have mixed, moved around and mixed some more and are still mixing today. It's not our own blood or ancestry that will redeem us in the afterlife. Hebrews 13:12, Ephesians 1:7 and 2:13 reassures us that only the blood of Christ can make us Holy (Heb. 12:14) enough to see Yahweh.
Furthermore, if everyone realized we are all one big family, the world might be a better place.