Illuminating, preserving and celebrating the diverse collective history of greater Stillwater. The mission of the Stillwater History Museum at the Sheerar is to receive and collect the material culture of Stillwater, Oklahoma, dating from prehistoric times, but especially from the 1880s to the present; to preserve those materials for the future; to study them to derive information about the past; and to use the knowledge resulting from such study to present to the public the history and culture of the area through all effective means.