 
 <prompt> In which year BC Qin dynasty end? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```China first imperial dynasty na Qin dynasty (221–206 BC). Qin people unify Chinese Warring States by force, but their empire come dey shake after the first emperor Qin Shi Huangdi die. Within four years, the dynasty authority collapse sake of rebellion. Two former rebel leaders, Xiang Yu (d. 202 BC) of Chu and Liu Bang (d. 195 BC) of Han, enter war to decide who go become hegemon of China, wey don divide into 18 kingdoms, wey dey loyal to either Xiang Yu or Liu Bang. Even though Xiang Yu show say e sabi command, Liu Bang beat am for Battle of Gaixia (202 BC), for modern-day Anhui. Liu Bang come carry the title "emperor" (huangdi) as hin followers dey urge am and dem know am as Emperor Gaozu (r. 202–195 BC) after hin die. Chang'an na the new capital of the reunified empire under Han.``` 