1. South Dakota became a state on November 2, 1889, but March 1 marks the day it officially adopted a state flag in 1909. The flag features a blue background with the state seal in the center and the words "South Dakota" above it and "The Mount Rushmore State" below.

2. In 1917, the United States declared war on Germany and entered World War I. South Dakota played a significant role in the war effort, with thousands of men and women joining the military or supporting it through various industries and organizations.

3. On March 1, 1933, President Franklin D. Roosevelt declared a national banking holiday in an effort to stabilize the country's financial system during the Great Depression. South Dakota was one of several states that closed its banks for several days as part of this effort.

4. In 1961, the South Dakota legislature passed a bill establishing the state's first community college, which later became Mitchell Technical Institute. Today, South Dakota has several community colleges and technical schools that offer a range of programs and degrees.

5. March 1, 2007, marked the date that South Dakota's smoking ban went into effect, prohibiting smoking in most public places, including bars, restaurants, and workplaces. The law was passed in an effort to improve public health and reduce the harmful effects of secondhand smoke.