Frederick Jackson Turner (November 14, 1861–March 14, 1932) was distinguished more for a seminal idea than for any particular work. He received his PhD at Johns Hopkins University in 1890, and taught first at the University of Wisconsin from 1889 to 1910 then at Harvard until 1924. His paper on “The Significance of the Frontier in American History,” first presented at the 1893 AHA meeting held in Chicago, revolutionized the study of . expansion and would serve as a catalyst for wide-ranging explorations in social and economic history for decades to come. The “frontier thesis,” as it came to be known, proposed that the peoples of the United States had developed a unique character and more democratic politics because immigrants were able to acquire land of their own on an unfolding frontier through the 18th and 19th centuries. This subject oriented his subsequent work, as in the address above, and in works such as Rise of the New West, 1819–1829 (1906), The Frontier in American History (1920), and The United States: 1830–1850 (1935) .