In 1890, this man did something that Adam Fine could not do: earn a Ph.D. in history at Johns Hopkins. In 1910, he moved to Harvard after teaching for 21 years at Wisconsin, and he won a posthumous Pulitzer Prize in 1933 for his book on sectionalism in American history. For 
In 1890, this man did something that Adam Fine could not do: earn a Ph.D. in history at Johns Hopkins. In 1910, he moved to Harvard after teaching for 21 years at Wisconsin, and he won a posthumous Pulitzer Prize in 1933 for his book on sectionalism in American history. For ten points, name this historian who noted that the "national psychology" had changed in his paper "The Significance of the Frontier in American History."
In 1890, this man did something that Adam Fine could not do: earn a Ph.D. in history at Johns Hopkins.
Frederick Jackson {Turner}