The Jewish Community of Zagreb was founded in 1806 and soon became the largest community in Croatia. The community was concentrated in the block from Petrinjska and Amruševa to Palmotićeva Street. Communal offices, the rabbinate, and other institutions and societies related to Jewish life, education, culture, sports, and other aspects of civil society operated there. During the Holocaust, from 1941 to 1942, there were only communities in Zagreb, Osijek and two in Sarajevo on the territory of the NDH. However, since the deportations to Auschwitz-Birkenau in the summer of 1942, the Zagreb community was the only one that operated on the territory of the NDH.