Pinback button signifying membership in the National Association for the Advancement of Colored People (NAACP), 1952. Litho.Founded in 1909, the NAACP was the most respected and effective national civil rights organization in the first half of the 20th century, and it played a major supportive role in the Civil Rights Movement of the mid-century period. This pinback would have been worn by a member of the organization at a time when the "race question" was coming to the forefront in American society.