What was the reason for the shang dynasties reason for their ride to pose?

According to legend, the Shang Dynasty was founded sometime around 1600 BCE by a virtuous man named Cheng Tang, who overthrew the evil king of the legendary Xia. The Shang Dynasty was a monarchy governed by a series of kings, 29 or 30 in total, over the course of almost 600 years.

sorry i tried to but i didn’t get it

where is the subject? hahahaha