1. On September 13, 1913, the North Dakota Agricultural College (now known as North Dakota State University) held its first day of classes for the fall semester.

2. The first electric power plant in Fargo was established on September 13, 1882. The plant was built by George M. Wheeler and powered by a steam engine that burned lignite coal.

3. On September 13, 1868, the first legal hanging in the Dakota Territory took place in Yankton. James Maher was executed for the murder of Abraham Phillips.

4. In 1923, the state of North Dakota established its first-ever minimum wage law on September 13. The law required employers to pay at least $0.40 per hour to its workers.

5. On September 13, 1958, the Minot Air Force Base officially became operational, marking the beginning of its role as a crucial component of America's nuclear deterrence strategy during the Cold War.