How did the library of congress to fight against negative stereotypes about african americans at the paris world's fair apex

During the Paris Exposition of 1900, the main topic of discussion was that of "social economy." The United States decided to send a collection that showed the history of African Americans, including their present condition, their education and their literature. W. E. B. Du Bois was instrumental in designing the exhibition, and the Library of Congress sent 200 books written by African American authors. Moreover, the exhibition included 500 photographs, 32 charts and numerous maps.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

i also think he is correct. i believe they came to washington to protest their rights.