The monograph is devoted to the history of the Illyrian movement - one of the most important problems of the national revival of the Yugoslav peoples in the 19th century. The author, relying on numerous sources (documents, press and other publications of that time), examines the socio-economic and political prerequisites of Illyricism, studies the beginning of the Illyrian movement and its social foundations. The monograph gives a detailed analysis of the ideology of Illyrism and the program of the Illyrian movement in the 30-40s of the XIX century, during the period of the powerful rise of the national movement of the southern and western Slavs. The author of the monograph also pays great attention to the political history of the Illyrian movement in Croatia in the 40s of the XIX century. and its connections with the national liberation movement of other Slavic peoples.