1. In 1890, the official census of South Dakota was conducted on October 30th. The results showed the total population of the state at the time was 328,808, with the majority of residents being of German and Scandinavian descent.

2. On October 30, 1931, the historic Crazy Horse Memorial was dedicated near Custer, South Dakota. The monument, which is still under construction, honors the Native American warrior and leader of the Lakota Sioux.

3. In 1945, South Dakota Governor Harlan J. Bushfield signed a proclamation declaring October 30th as "Dakota Day." The day was meant to celebrate the heritage and history of both North and South Dakota, which were admitted to the Union as separate states on November 2, 1889.

4. On October 30, 1989, the Wall Drug Store in Wall, South Dakota celebrated its 50th anniversary. The store, which began as a small pharmacy in 1931, has since expanded into a major tourist attraction known for its iconic billboards and free ice water.

5. South Dakota Senator Tom Daschle was born on October 30, 1947 in Aberdeen, South Dakota. Daschle served in the U.S. Senate from 1987 to 2005 and was also the Senate Majority Leader from 2001 to 2003. He is currently a public policy advisor and serves on several corporate boards.