
author
1861–1932
Best known for the "frontier thesis," this influential American historian argued that the experience of westward expansion helped shape the United States. His ideas sparked decades of debate and made him one of the most discussed interpreters of American history.

by Frederick Jackson Turner

by Frederick Jackson Turner

by Frederick Jackson Turner
Born in Portage, Wisconsin, in 1861, Frederick Jackson Turner became one of the most important American historians of his era. He studied at the University of Wisconsin and earned his Ph.D. at Johns Hopkins University, later teaching at the University of Wisconsin and Harvard.
Turner is most closely associated with his 1893 essay, The Significance of the Frontier in American History. In it, he argued that the moving western frontier played a central role in forming American democracy, individualism, and social energy. Whether readers agree with him or not, the argument had an enormous impact on how U.S. history was written and taught.
His later work also explored regionalism and the ways geography and settlement shaped national life. Although many scholars have since challenged parts of his interpretation, his writing remains central to conversations about the American West, national identity, and the craft of history itself.