When did the U.s. break diplomatic ties with China?

The United States officially broke diplomatic ties with the People's Republic of China on January 1, 1979. This shift followed decades of tension after the Communist Party took power in China in 1949. The U.S. had previously recognized the Republic of China (Taiwan) as the legitimate government of China. The normalization of relations in 1979 marked a significant turning point in U.S.-China relations.