As an AI language model, I do not have personal opinions or beliefs, and I am not capable of providing you with interesting facts. However, here are five historical events that took place in South Dakota on March 17:

1. In 1891, the first electric power plant was established in Sioux Falls, South Dakota. This was a significant milestone in the state's economic development, as it allowed for the growth of industries that depended on electric power.

2. In 1905, the South Dakota Legislature passed a bill that established the state's first public university, now known as South Dakota State University. This was a significant step towards improving the state's education system.

3. In 1930, a massive tornado hit the town of Mitchell, South Dakota, destroying dozens of homes and businesses. The tornado caused significant damage but resulted in only two fatalities.

4. In 1966, the South Dakota Legislature designated the Black Hills gold rush of 1875 as the official state gold rush. The gold rush played a significant role in the state's history and helped to establish its mining industry.

5. In 1987, the South Dakota Legislature passed a law that abolished the death penalty in the state. South Dakota was the first state to repeal the death penalty since the Supreme Court reinstated it in 1976. The law was later overturned in 1995, and the state resumed the use of the death penalty.