Arnoldson, Klas Pontus (kläs pônˈtəs ärˈnôldsōn) [key], 1844–1916, Swedish journalist and peace advocate. His untiring efforts for peace were rewarded by the 1908 Nobel Peace Prize, which he shared with Fredrik Bajer. A book he wrote on world peace (1900) was widely read. As a member (1882–87) of the Swedish Riksdag, he introduced a motion for permanent neutrality. In the union crisis in 1905, he opposed war with Norway. He founded several societies devoted to peace.
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