A photograph of the Yugoslavian Nationality Room in the Cathedral of Learning. This Classroom combines the crafts of wood carving, weaving and lace making with tributes to Yugoslav cultural leaders. Above the blackboard can be seen two portraits. The portraits are of Vuk Karadzic and Bishop Josip Strossmayer, who compiled the Serbian dictionary. The intricate woodwork done on the ceilings and walls was done in Yugoslavia with small pocket knives. The Yugoslav Room was dedicated on March 31, 1939. This room, along with 25 other Nationality Rooms all with different architectural styles, was conceived in the 1920s by sociologist Ruth Crawford Mitchell as a means of linking the university with the immigrant culture of the steel-working families.