This monograph traces the development of Bulgarian-Hungarian academic relations in various fields of the humanities (history, archaeology, ethnography, and linguistics), as well as in the biological sciences (botany and zoology) from the 19th century to the mid-20th century. Based primarily on previously unused sources, the book traces the creative interaction between Bulgarian and Hungarian scholars—the paths, forms, and aspects of their communication and its tangible contributions to Bulgarian studies and Hungarian studies, respectively, as part of European scholarship.