The British government had established a monopoly to trade in opium in Bengal by ______.
Early in the 18th century the Portuguese found that they could import opium from India and sell it in China at a considerable profit. By 1773 the British had discovered the trade, and that year they became the leading suppliers of the Chinese market. The British East India Company established a monopoly on opium cultivation in the Indian province of Bengal, where they developed a method of growing opium poppies cheaply and abundantly. Other Western countries also joined in the trade, including the United States, which dealt in Turkish as well as Indian opium.