China and the United States haven't contacted each other for 25 years? What year is it?

Going forward, it should be about 1947 to 1972.

On June 26th, US President Richard Nixon arrived at Beijing Capital Airport by special plane and was greeted by Zhou Enlai, Prime Minister of the State Council, China. Zhou Enlai said to Nixon, "You crossed the vastest ocean in the world and shook hands with us-we haven't been in touch for 25 years!" Nixon said: "This is a handshake between Chinese and American leaders who have crossed an ocean and been hostile to each other for more than 20 years, indicating that Sino-US relations will turn a new page." .

There has been no communication between China and the United States for a long time, mainly because the two countries have different ideologies.

Secondly, the cold war pattern between East and West after World War II; 1972 Nixon visited China and signed the Sino-US joint communique in Shanghai.