Final answer:
SNCC achieved social change through grassroots activism and nonviolent protests, including sit-ins, freedom rides, and voter registration drives, leading to desegregation and political empowerment for African Americans.
Step-by-step explanation:
The Student Nonviolent Coordinating Committee (SNCC) was a cornerstone of the Civil Rights Movement that achieved significant social change through grassroots activism and nonviolent protests. Through their pioneering efforts, SNCC not only facilitated the desegregation of public facilities but also played a crucial role in the voter registration campaigns which empowered African Americans politically. Their strategies included organized sit-ins, freedom rides, and voter registration drives that rallied citizens and challenged oppressive systems directly rather than through protracted legal battles or political appointments.