The paper presents research on Ivan Kukuljević Sakcinski published in the Radovi edition by the Institute for Scientific Research Work in Varaždin. These are all, with one exception, authorized presentations from scientific conferences organised at Kukuljević’s Days manifestation in Varaždinske Toplice. The authors are: Miroslav Kurelac, Aleksandra Kolarić, Ivan Zvonar, Mirjana Matijević-Sokol, Stjepan Hranjec, Miroslav Šicel, Božena Filipan, Denis Peričić, Tomislav Đurić, Dubravka Franković and Stjepan Damjanović, who presented his paper at the conference, Homage to Vatroslav Jagić 1838 – 2003. Roundtable held in Varaždin on 23 September 2013. In their texts the aforementioned authors highlighted the most important events from life and work of Ivan Kukuljević Sakcinski. Ivan Kukuljević Sakcinski was not only the founder of numerous scientific disciplines but also of many archives, libraries, museums, magazines, and of cultural and historical societies. He gathered historical materials and sources (state archive), published significant historical documents, wrote scientific historical discussions and was also a biographer, archaeologist, art historian, bibliographer and bibliophile.