River towns and trailheads, 1822-1860 -- The rise of a metropolis, 1867-1889 -- Maturity in a railroad mode, 1893-1933 -- The city in the gray flannel suit, 1940-1967 -- Geography in black and white, 1968-1991 -- Toward a more complete city, 1992-2011.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.