This is a timeline of the civil rights movement in the United States, a nonviolent mid-20th century freedom movement to gain legal equality and the enforcement of constitutional rights for people of color. The goals of the movement included securing equal protection under the law, ending legally institutionalized racial discrimination, and gaining equal access to public facilities, education reform, fair housing, and the ability to vote.

Desegregation is the process of ending the separation of two groups, usually referring to races. Desegregation is typically measured by the index of dissimilarity, allowing researchers to determine whether desegregation efforts are having impact on the settlement patterns of various groups. This is most commonly used in reference to the United States. Desegregation was long a focus of the American civil rights movement, both before and after the US Supreme Court's decision in Brown v. Board of Education, particularly desegregation of the school systems and the military. Racial integration of society was a closely related goal.