Naiden P. Stoianov (1830–76) was the author of several Bulgarian textbooks, but he is better known as one of the leaders of the uprising by the Bulgarians against Ottoman rule in April 1876. Also known as the Koprivshtitsa uprising after one of the towns in which the insurrection was centered, the April uprising was brutally crushed by the Ottomans. Stoianov died in prison after being tortured. He was a student of both Neofit Rilski and Naiden Gerov, leading writers and luminaries in the Bulgarian National Revival of the 19th century. His Brief Anthropology, or the Science of Man, published in 1856, marked the beginning of the development of a Bulgarian scientific terminology, and in particular of words describing the human body.