Danica was the first concentration and extermination camp established in the Independent State of Croatia during World War II. It was established in Koprivnica on 15 or 20 April 1941 in the deserted building of former fertilizer factory "Danica". Mijo Babić participated in preparations for the establishment of Danica concentration camp. The first individual inmates were brought to Danica on 18 April 1941 while first groups arrived at the end of April 1941.