1. On May 15, 1911, the city of Fargo experienced a major flood caused by the overflow of the Red River. The flood reached a record-breaking height of 40.1 feet, causing severe damage to homes and businesses in the area.

2. In 1933, North Dakota Governor William Langer signed into law the "Banking Holiday" bill on May 15. This bill closed all state banks for five days to prevent a run on the banks during the Great Depression.

3. On May 15, 1934, the town of Amidon experienced the highest temperature ever recorded in North Dakota at 121 degrees Fahrenheit. This extreme heat caused damage to crops and livestock in the area.

4. The legendary British rock band, Led Zeppelin, performed at the Bismarck Civic Center on May 15, 1977, during their "Presence" tour. This concert is considered by many to be one of the best performances by the band.

5. On May 15, 2004, North Dakota native Kyle Erickson became the first linebacker drafted from the University of North Dakota in over 50 years. He was selected in the third round of the NFL draft by the Cleveland Browns.