The Unification of China By devinwilliams33 Period: 551 BCE to 479 BCE Confucius Period: 403 BCE to 221 BCE Period of the Warring States Period: 390 BCE to 338 BCE Shang Yang Period: 372 BCE to 289 BCE Mencius Period: 298 BCE to 238 BCE Xunxi Period: 280 BCE to 233 BCE Han Feizi Period: 221 BCE to 207 BCE Qin Dynasty Period: 221 BCE to 210 BCE Qin Shihuangdi The First Emperor Period: 206 BCE to 9 Former Han Dynasty Period: 141 BCE to 87 BCE Reign of Han Wudi Period: 9 to 23 Reign of Wang Mang Period: 25 to 220 Later Han Dynasty