God created man amd woman , and developed their offspring,.
Several events happened in these few chapters.
1. The tower of Babel
That is the reason why we have so many different languages in the world today , as God had to stop human's vanity.
2. Hagar gave bithe to Ishmael
This incident incicates that men made mistakes but never faced them , and the only way they dealt with was to escape and not to take the responsibility. But God was nice to them and gave them solutions.
3. Abram changed the name to Abraham.
Sarai changed the name to Sarah.