Map of hertfordshire for com; Daniel Yergin, The Prize (Simon & Shuster, 1991). JOHN SORRENTINO, PH.D. MAHBUB RABBANI, M.A. TEMPLE UNIVERSITY Opium Wars THE OPIUM WARS occurred during CHINA’s rule by the Manchus, the hunting, fishing, and farming people from central Manchuria who had succeeded the Ming (1644) and maintained a superior standard of living until the 1700s. The Manchus had expanded the empire, treating non- Chinese as tributary states, and like the Ming, disdained foreign barbarians, allowing only government-recognized monopolies to trade with the Spanish, Portuguese, Dutch, and English. Map of hertfordshire 2016.