What was the biggest social event to happen in the 50's?

The biggest social event of the 1950s was arguably the Civil Rights Movement, which gained significant momentum during this decade. Key events such as the Brown v. Board of Education Supreme Court decision in 1954 and the Montgomery Bus Boycott in 1955 highlighted the struggle against racial segregation and discrimination in the United States. This movement laid the groundwork for future activism and significantly transformed American society, promoting greater awareness and action towards civil rights.