 FAIR: At the beginning of the movie, subtitles state that China was  divided into seven warring states. At the end, the subtitles then  state that "the King of Qin" unified China, without specifying which  one. Historically, the king that was the one to unite all of the  Chinese states was Ying Zheng (later changed name to Shi Huang Di)  who inherited the throne from his deceased father at age 13 (as  opposed to the age of the king in the movie). At the time, Ying  Zheng began to rule China, the seven states were already reduced to  two larger states (Qin and Chu) which was later dominated by Qin  when Ying Zheng was 22 years old. It is therefore impossible for the  same king shown in the movie to be the king that united all the  Chinese states, although the end