I want to know the answer to the following question:
What treaty marked the end of the First Opium War?
All the background I'm provided with is that "The Treaty of Nanjing, the first of the unequal treaties, demanded war reparations, forced China to open up the five ports of Canton, Amoy, Fuchow, Ningpo and Shanghai to western trade and missionaries, and to cede Hong Kong Island to Britain.". Is that enough to answer the question?