1856- 1858 the second opium war. China and the United States sign Tianjin Treaty

1900 Eight-Nation Alliance invaded China. Sino-American "Xin Chou Treaty".

1900 or so. The United States implements an "open door" policy towards China and exports capital to China. It has greatly influenced the development of national capitalism.

1937- 1945。 Mainly at the end of World War II, China and the United States belong to the international anti-fascist alliance and belong to the alliance relationship.

1945- 1949。 During the War of Liberation, the United States supported Chiang Kai-shek against * * *. The relationship with the producer of * * * is hostile.

1949- 197 1。 Implement the policy of encouraging blockade against New China.

1972. Ping-pong diplomacy, Kissinger's visit to China, Nixon's visit to China, and the signing of the Sino-US joint communique. Sino-US relations have eased.

1978 Carter visited China and signed the communique on the establishment of diplomatic relations between China and the United States. China and the United States formally established diplomatic relations.

Summary: There are many common interests, with cooperation as the mainstay and conflict as the supplement.

PS: I arranged it myself according to the time required by the landlord. I hope it helps.