Appalachian State University, or App State, is a public research university in Boone, North Carolina, United States. It was founded as a teachers' college in 1899 by brothers B. B. and D. D. Dougherty and the latter's wife, Lillie Shull Dougherty. The university expanded to include other programs in 1967 and joined the University of North Carolina System in 1971. It is classified as "R2: High Research Spending and Doctorate Production" for research activity.