Not only do the early chapters of Genesis after the Flood continue to provide us with real history, the genealogies and the account of the Tower of Babel explain for us much of why life is the way it is.
The nations of the world were founded by the descendants of the sons of Noah as they got off the ark and dispersed after the incident at Babel.
The confusion of man's language at Babel explains the origins of the different language families, for which there is absolutely no evolutionary explanation.
And this is not just "God-of-the-gaps" reasoning. God has specifically revealed that He did indeed confuse mankind's language and why: to thwart their evil intent and to force them to spread across the earth as He had blessed them to do. God's purposes will stand regardless of man's evil intents.
But this dispersion from Babel explains not only the origin of languages, but also the origin of what we call the races. All people are all of one human race, but natural selection does operate on reproductively isolated populations to reduce genetic diversity.
This explains for us more specifically why there is conflict between nations and between tribes.
But the Spirit came to break down those barriers, and we can use modern technology to spread the "mighty works of God," especially the gospel of Jesus Christ, throughout the world.