National Register Listings in Clinton County, Iowa
Ames Creek Bridge
Ankeny Building
Anthony, Horace, House
Castle Terrace Historic District
Cherry Bank
Chicago, Milwaukee, St. Paul & Pacific Depot-Delmar
City Hotel
Clinton County Courthouse
Clinton High School and Public Library
Clinton Public Library
Curtis, George M., House
Delmar Calaboose
Dierks, Peter, House
Dugan's Saloon
Farmers and Merchants Savings Bank
First National Bank
Grand Mound Town Hall and Waterworks Historic District
Helvig-Olson Farm Historic District
Howes Building
Johnson, George, House
Kvindherred Lutheran Church, School and Cemetery
Lamb, Lafayette, House
Moeszinger-Marquis Hardware Co.
Saint Boniface Church
Saint Irenaeus Church
Sharon Methodist Episcopal Church
Van Allen Store
Washington Junior High School and Jefferson Grade School
Wilson Buildings
Wilson District #7 School
The first electronic digital computer was built at Iowa State University in the 1930s. The machine, called the Atanasoff-Berry Computer, was invented by John Atanasoff and his graduate student, Clifford Berry.