The Oregon Historical Society (OHS) is an organization that encourages and promotes the study and understanding of the history of the State of Oregon, within the broader context of U.S. history. Incorporated in 1898, the Society collects, preserves, and makes available materials of historical character and interest, and collaborates with other groups and individuals with similar aims. The society operates the Oregon History Center that includes the Oregon Historical Society Museum in downtown Portland. Source: Wikipedia (en)