I'm not aware of an organization specifically called "The National Association in Black history." However, there are several prominent organizations in Black history that have made significant contributions to the advancement and celebration of African American culture and achievements.

One such organization is the National Association for the Advancement of Colored People (NAACP), founded in 1909. The NAACP is one of the oldest and most influential civil rights organizations in the United States. It has played a key role in fighting against racial discrimination and advocating for social justice, equality, and civil rights for African Americans and other marginalized communities.

Another important organization is the National Urban League, founded in 1910. The National Urban League focuses on economic empowerment, social justice, and equality for African Americans through programs and initiatives aimed at job training, education, housing, and community development.

Additionally, the Association for the Study of African American Life and History (ASALH) was founded in 1915 by Dr. Carter G. Woodson, known as the "Father of Black History." ASALH is dedicated to promoting, researching, and preserving Black history and culture through events, publications, and educational programs.

These organizations, among others, have played vital roles in championing Black history and the ongoing struggle for equality and justice for African Americans.