A social and political movement in the United States during the mid-20th century, characterized by nonviolent protest, civil disobedience, and grassroots organizing, aimed at ending racial segregation and discrimination, securing civil rights and voting rights for African Americans, and challenging systemic racism and injustice in American society. Led by figures such as Martin Luther King Jr., Rosa Parks, and John Lewis, the nonviolent civil rights movement played a key role in advancing racial equality and social change.