1. Great Flood of 1892: On February 13, 1892, the Great Flood struck South Dakota causing extensive damage and loss of life. Several towns along Missouri River were washed away by the flood, and it is still considered one of the worst natural disasters in the state's history.

2. Winter Storm Atlas: In 2013, Winter Storm Atlas hit South Dakota on February 13 and caused severe blizzard conditions along with heavy snowfall. The storm resulted in significant infrastructure damage and livestock losses, leaving a lasting impact on the state's economy.

3. Statehood day: February 13 is celebrated as Statehood Day in South Dakota as it marks the day when South Dakota was admitted to the Union in 1889 as the 40th state.

4. Black Hills gold rush: On February 13, 1876, the Black Hills gold rush began in South Dakota, leading to a significant influx of gold miners and settlers into the state.

5. Wounded Knee incident: On February 13, 1973, a group of Native American activists occupied the town of Wounded Knee in South Dakota as a protest against the federal government's handling of Native American affairs. The occupation lasted for 71 days and ended in a standoff with law enforcement. The incident brought national attention to the issues faced by Native Americans in the United States.