sentences:  He was an associate professor of history at Concordia Senior College from 1958 to 1963, after which he was hired at the University of Illinois.In a 1972 essay entitled, "World War I as a Galloping Gertie", Schroeder contrary to established historical opinion and Article 231 of the Treaty of Versailles laid the blame for the First World War on Britain's doorstep.Schroeder characterized the political events leading up to the war as a "Galloping Gertie," a metaphor which described political events as escalating out of control, pulling and pushing all five Great Powers into an unwanted war.