Os Sertões (Rebellion in the Backlands), by the engineer Euclides da Cunha, is one of the most important books in Brazilian literature, with more than 50 local editions and translations in at least nine languages. Published in 1902 after four years of writing, it is a book about nationality in Brazil that sparked a debate regarding the subject of national consciousness and the connection between a nation's physical landscape, its people, and its culture. The book draws from a wide spectrum of knowledge that synthesizes science and art as the pinnacle of human thought. Cunha was a man of great culture and learning and in this work his professional activities and scientific writings merge to celebrate Brazilian culture in different realms of knowledge. The author worked as an engineer and had connections with the scientific community and the world of natural science. His explicit references to naturalists, travelers, geologists, and botanists reflect the historical moment of scientific knowledge in Brazil in the late nineteenth and early twentieth century, and no less than that, Cunha's personal connections with the local scientific community.