Hammurabi's Babylonia

Hammurabi became king of Babylonia in around 1792 B.C. He is famous for inventing the 280 different laws varying from topics like  marriage and divorce to slaves and surgery. He was and still is famous for coming up with the phrase "An eye for an eye, a tooth for a tooth".  He united all of the Mesopotamian city states into one Empire., and was the king during one of the most successful times in Babylonia. Their trading flourished as farming improved when he created more dams for irrigation. Some of his laws I found fair whereas some others not so fair, for example: one of his laws states that if a house collapses and kills the owner the builder should die. OK, even though this is horrible it still has some sense in it because the builder did a poor job but then it also says that if the son of the owner is killed the builders son is killed too. How fair is that? Another example is with a surgeon if he kills a patient whilst operating he may have his hand cut off even though the medical equipment in those was was unclean and basic.