1. In 1887, the first Chautauqua assembly was held in Watertown. The Chautauqua movement presented educational and cultural programs throughout the country, and Watertown's assembly became one of the most successful in the region.

2. On August 2, 1909, the city of Deadwood was devastated by a flood. A sudden burst of heavy rain caused a flash flood that destroyed many buildings and caused several deaths. The flood prompted the construction of several dams and levees to help prevent future disasters.

3. In 1973, the National Guard was called in to help quell violent protests during the American Indian Movement's occupation of Wounded Knee. The occupation lasted for 71 days and was sparked by demands for increased recognition of Native American rights.

4. The South Dakota State Fair has been held each year in Huron since 1905. The fair is one of the state's largest annual events and features carnival rides, livestock competitions, live music, and a variety of other attractions.

5. On August 2, 1927, Charles Lindbergh made a stopover in Sioux Falls during his historic transatlantic flight. Lindbergh was greeted by thousands of cheering fans and spent a few hours in the city signing autographs and meeting with local officials.