|The Galena Historic District represents a microcosm of the American experience between the years 1820 and 1930. Within that period of significance are included the first major mineral rush in U.S. history, the growth ofthe largest steamboat hub north of St. Louis, the development of a huge wholesaling, retailing and commercial center, the appearance of Ulysses S. Grant and the Civil War, and the subsequent decline of Galena into a local trade center. The buildings, visually cohesive and largely intact for the entire period, tell not just Galena's story, but the story of the nation. This nomination form is an amendment to the original 1969 nomination and provides additional documentation and justification for a boundary modification to better match Galena's story with available resources. The District is significant under Criterion A in the areas of Commerce, Industry and Transportation; and Criterion C in the area of Architecture.