Qin Shi Huang Di, originally called Ying Zheng, was the king of the Chinese State of Qin from 246 BC to 221 BC, during the Warring States Period. He became the first emperor of a unified China in 221 BC. He ruled until his death in 210 BC at the age of 49. The Emperor died during one of his tours of Eastern China, on September 10, 210 BC at the palace in Shaqiu prefecture, about two months away by road from the capital Xianyang. Reportedly, he died due to ingesting mercury pills, made by his alchemists and court physicians. Ironically, these pills were meant to make Qin Shi Huang immortal. Qin Shi Huang was the first emperor be called the honorific title"Huang Di"-- be created by combined the title of Three Sovereigns(Huang) and Five Emperors(Di). From then on, Huang Di is known as the highest ruler in ancient China.