What was the news in the world on April 4 1957?

On April 4, 1957, a significant event in the Cold War era occurred when the Soviet Union announced the successful test of an intercontinental ballistic missile (ICBM). This development heightened tensions between the U.S. and the USSR, contributing to the arms race and concerns over nuclear capabilities. Additionally, in the United States, the Supreme Court ruled in the case of "Baker v. Carr," which addressed issues of legislative redistricting and the principle of "one person, one vote."