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| 1839 | Lamb, William Confiscation Opium |  |
| Guangzhou The Chinese Government confiscates 20,000 British crates of opium |
| 1839 | Lamb, William Declaration of War |  |
| 1st of the 2 Opium Wars between China & Britain |
| 1840 | Lamb, William Siege of Guangzhou |  |
| Guangzhou Palmerston sends 16 British warships to Guangzhou |
| 1842 | Peel, Robert Rule of Hong Kong |  |
| Hong Kong Under the treaty of Nanking Hong Kong is ceded to Britain |
| 1842 | Peel, Robert Treaty of Nanking |  |
| Nanking Under the treaty of Nanking Hong Kong is ceded to Britain |
| 1842 | Pottinger, Henry Rule of Hong Kong |  |
| Hong Kong Negotiates the treaty of Nanking under which China cedes Hong Kong to Britain |
| 1842 | Pottinger, Henry Treaty of Nanking |  |
| Nanking Negotiates the treaty of Nanking under which China cedes Hong Kong to Britain |
| 1842 | Temple, Henry John Rule of Hong Kong |  |
| Hong Kong Under the treaty of Nanking Hong Kong is ceded to Britain |
| 1840 | Temple, Henry John Siege of Guangzhou |  |
| Guangzhou Palmerston sends 16 British warships to Guangzhou |
| 1842 | Temple, Henry John Treaty of Nanking |  |
| Nanking Opens up Canton, Amoy, Foochow, Nangpo & Shanghai, known as "the Treaty ports" |
| Nanking The treaty of Nanjing ends the 1st Opium War between Britain & China |
| Nanking Under the treaty of Nanking Hong Kong is ceded to Britain |