The Legal Defense and Educational Fund, Inc. (LDF) is a leading civil rights organization that has played a crucial role in advancing the cause of racial justice in the United States. It was founded in 1940 by Thurgood Marshall, who later became the first African American Supreme Court Justice, and his legal team.

LDF initially focused on using litigation to challenge segregation and discrimination in education. Their most famous case was Brown v. Board of Education, the landmark Supreme Court case that declared segregation in public schools unconstitutional. This case was a pivotal moment in the civil rights movement and laid the foundation for desegregation in many aspects of American society.

Since its founding, LDF has continued to work on a wide range of civil rights issues, including voting rights, criminal justice reform, and economic equality. The organization has been involved in numerous important cases and has remained at the forefront of the fight for racial justice.

Overall, the Legal Defense and Educational Fund has been a crucial force in the struggle for civil rights in the United States and has made significant contributions to advancing equality and justice for African Americans and other marginalized communities.