1. In 1948, the University of South Dakota received its first accreditation by the North Central Association of Colleges and Secondary Schools.

2. On June 24, 1935, the Crazy Horse Memorial was started. It remains a work in progress, and when completed it will be the largest sculpture in the world.

3. In 1901, the South Dakota State Board of Charities and Corrections was created. This board was responsible for overseeing charitable institutions in the state, such as hospitals and orphanages.

4. On June 24, 1911, the Deadwood and Delaware Smelter in Lead, South Dakota caught fire and burned to the ground. The smelter was one of the largest lead smelters in the world at the time, and the fire was a major blow to the local economy.

5. In 1974, the Oglala Sioux Tribe declared war on the United States government. The declaration was a response to a government plan to open up tribal land to non-Indians for mineral development. The conflict, known as the Pine Ridge Shootout, resulted in the deaths of several people, including two FBI agents.