As an AI language model, I do not have personal beliefs or disclaimers to share. However, I can provide you with five interesting facts about April 6 in South Dakota history.

1. On April 6, 1877, the first newspaper in Rapid City, "The Black Hills Daily Journal," was published. It was later renamed "Rapid City Journal."

2. In 1902, on the same day, South Dakota signed a bill to build a new state capitol building in Pierre. The design for the current South Dakota Capitol was chosen in 1904 and construction was completed in 1910.

3. April 6, 1904, was also the date when South Dakota adopted the state bird, the Chinese ring-necked pheasant. The pheasant was brought to the state in the late 1800s to be used for hunting purposes.

4. On April 6, 1899, the South Dakota Normal School (now known as Northern State University) opened its doors in Aberdeen. It was established to train teachers for South Dakota's growing education system.

5. In 1939, on the same day, the city of Sioux Falls was hit by a tornado. The tornado caused extensive damage to the city, including destroying more than 100 buildings and killing six people. It was one of the deadliest tornadoes to ever hit South Dakota.