Final answer:
Benjamin Piatt Runkle was an American soldier and educator who played a significant role in the establishment of the first college-based fraternity, the Sigma Chi fraternity.
Step-by-step explanation:
Benjamin Piatt Runkle was an American soldier and educator who played a significant role in the establishment of the first college-based fraternity, the Sigma Chi fraternity. Runkle helped found the fraternity in 1855 at Miami University in Ohio, and served as its first president. He also served in the Union Army during the Civil War and later became a professor of military science at Ohio State University.