In 1883, the first permanent building, Old Main, was completed. Old Main remains prominent on campus, housing administration offices, Levitt Hall, and Sheslow Auditorium, and as the site of many United States presidential debates, and other events. The university's law school–the second oldest law school in the country west of the Mississippi River, after Saint Louis University School of Law–was established in 1865, by Chester C. Cole,[4] who served on the Iowa Supreme Court from 1864 to 1876.