 Immigrants from Sweden, Norway, Denmark, Germany, Austria, Czechoslovakia, Ireland, England, Italy, Poland, Hungary, Bulgaria, Croatia, Serbia, Ukraine, Romania, and Russia also settled in Duluth.Today, people of Scandinavian descent constitute a strong plurality of Duluth's population, accounting for more than one third of the residents identifying European ancestry.In September 1918, at the beginning of U.S. involvement in the Great War, a group calling itself the Knights of Liberty dragged Finnish immigrant Olli Kinkkonen from his boarding house, tarred and feathered him, and lynched him.