Shi Huang Di was the king of Qin, one of the several states engaged in war for over 300 years , the period called the Warring States Period. Thanks to superior military techniques, improved weaponry and a more productive agriculture that allowed to feed a moving large army, the king of Qin managed to crush all his rivals and impose his rule on all the other kingdoms, creating the first unified empire of China in 221 BCE. He is the first emperor of China.
