1. Armistice Day: On November 11, 1918, World War I officially came to an end with the signing of the armistice. This day was originally known as Armistice Day in honor of the soldiers who fought and died for their country.

2. Statehood Anniversary: November 11, 1889, was the day that South Dakota officially became a state. This event is celebrated annually with parades, fireworks, and other festivities.

3. Crazy Horse Memorial: On November 11, 1948, the construction of the Crazy Horse Memorial officially began. This massive sculpture, which depicts the Lakota warrior Crazy Horse on a horse, is still under construction today.

4. Black Hills Gold Rush: On November 11, 1875, a group of prospectors discovered gold in the Black Hills of South Dakota. This discovery led to the Black Hills Gold Rush, which attracted thousands of people to the region.

5. Badlands National Park: On November 10, 1978, Badlands National Monument was officially redesignated as Badlands National Park. This 244,000-acre park is home to stunning rock formations, wildlife, and a unique landscape that attracts visitors from around the world.