There is no specific organization called "The National Association in Black history." However, there are several prominent organizations focused on promoting and preserving Black history, such as the Association for the Study of African American Life and History (ASALH) and the National Museum of African American History and Culture.

The ASALH was founded by Dr. Carter G. Woodson in 1915, and it is dedicated to researching, promoting, and disseminating information about Black history and culture. The organization is best known for establishing Black History Month, which is observed every February in the United States and Canada.

The National Museum of African American History and Culture is a Smithsonian Institution museum located in Washington, D.C. It was established in 2016 and is dedicated to documenting African American history, culture, and contributions. The museum houses a vast collection of artifacts, exhibits, and educational programs that highlight the African American experience.

These organizations, along with many others, play important roles in preserving, educating, and celebrating the rich history of Black Americans.