Duke Xiao ascended to the throne of the Qin state in 361 BC at the age of 21, succeeding his father, Duke Xian. Duke Xiao was determined to restore the Qin state to its former glory as one of the Five Hegemons during the reign of his ancestor, Duke Mu. Hence, the duke sent out an announcement, calling for men of talent to aid him in strengthening Qin, promising them rewards of high offices and lands in return for their service. Wei Yang (later known as Shang Yang), a scholar from the Legalist School, responded to the duke's call as he had been unsuccessful in attempting to start his career in other states.