1. In 1910, the North Dakota Agricultural College (now North Dakota State University) was established by an act of the state legislature. Today, NDSU is a major research university with more than 14,000 students and over 100 academic programs.

2. On April 21, 1886, the Dakota Territory legislature established the town of Williston, named after Daniel Willis James, a board member of the Northern Pacific Railroad. Williston is now the eighth largest city in North Dakota and serves as a hub for oil and gas production in the Bakken shale formation.

3. In 1909, pioneer aviator Earl Ovington visited North Dakota as part of a tour of the Midwest. Ovington, who would later become the first official airmail pilot in U.S. history, demonstrated his Wright biplane at the State Fairgrounds in Fargo on April 21 of that year.

4. North Dakota's first art museum, the Plains Art Museum, opened its doors in Fargo on April 21, 1975. The museum's collection includes more than 4,000 works of contemporary and traditional art, with a particular focus on regional artists.

5. On April 21, 1932, the town of Minot experienced a severe blizzard that caused widespread damage and disrupted transportation across the state. The storm, which lasted three days, dropped over two feet of snow in some parts of the region and led to numerous deaths and injuries.