What do you think had caused the downfall of the Shang dynasty?

The last king of the Shang dynasty had been killed by the western zhou dynasty.

What do you think are important that led to the rise of the shang dynasty?

The people of the Shang dynasty lived in walled communities,grew rice and millet,raised cattle/sheep,pigs and dogs. They also used potters' wheels to make fine pottery.They were farmers, traders, priests and craftsman using the most advanced technology of their time. Their writing was the pictographic writing.