Genesis 4:22

“Zillah also had a son, Tubal-Cain, who forged all kinds of tools out of bronze and iron.  Tubal-Cain’s sister was Naamah.”  Genesis 4:22

Jabal and Jubal’s half-brother seems not to have made the same name for himself his brothers did, but was still skilled at forging.  These verses show that life was going on much as it is today.  Men were working their careers and having families and basically just living their lives.