On this day, 167 years ago, June 18, 1858 (May 8, 1858 in the lunar calendar), the United States lured the Qing government into signing the Sino-US Treaty of Tianjin. On June 18, 1858, during the Second Opium War, the U.S. envoy to China took advantage of the opportunity of the British and French coalition forces to capture Dajie and advance in Tianjin and Beijing to pretend to mediate and induce the Qing government's imperial envoys Guiliang and Huashana to sign the "Sino-US Treaty of Tianjin"(also known as the "Sino-US Treaty of Friendship"). Article 30 of the China-US Tianjin Treaty. The main contents are as follows: 1. If the Qing government allows envoys from other countries to visit Beijing, it should allow the United States to do so. 2. Add Huzhou (later changed to Shantou) and Taiwan (Tainan) as treaty ports. 3. The founder of the Jesuit Church is free to preach. 4. Determine consular jurisdiction. 5. Expand one-sided most-favored-nation treatment, that is, the privileges granted by the Qing government to other countries."Whether it involves ships, seas, trade, political exchanges, etc.", the United States has to "share it equally." A week later, the Sino-British and Sino-French Treaty of Tianjin obtained all the privileges of aggression against China plundered by Britain and France.