The United States formally recognized the People's Republic of China (PRC) in 1979. This recognition marked a significant shift in U.S. foreign policy and diplomatic relations, as the U.S. had previously acknowledged the Republic of China (Taiwan) as the legitimate government of China. The change came after years of improving relations, exemplified by President Richard Nixon's visit to China in 1972. Formal recognition opened the door for increased trade, cultural exchange, and cooperation between the two nations while continuing to shape geopolitical dynamics.