The specialists in this section explore the different tendencies in the development of crafts, commerce, educational and religious movement and the resulting cultural contacts; the beginning and the evolution of the political doctrines of the national liberation.

The section possesses valuable collections of manuscripts, documents, photographs, old printed books, weapons (collections of firearms and cold steel weapons) and others.     Exhibits of the fund nave been arranged in the two house museums connected with the period - those of Hadji Dimitar and Dobri Chintulov.