1. Statehood: On December 15, 1889, North Dakota became the 39th state in the United States. This historic event marked the end of the Dakota Territory and paved the way for North Dakota to become an integral player in American society.

2. Famous birth: North Dakota is the birthplace of Lawrence Welk, the legendary band leader who hosted "The Lawrence Welk Show" for more than three decades. Welk was born on December 15, 1903, in Strasburg, North Dakota.

3. Tragic plane crash: On December 15, 1960, a chartered plane carrying members of the Cal Poly football team crashed near Toledo, Ohio, killing all 22 passengers on board. The team was on its way to play in the Camellia Bowl in Sacramento, California, when the tragedy occurred.

4. Holiday traditions: Many North Dakotans celebrate the holiday season by attending events and participating in customs unique to the region. Some of the most popular traditions include cookie exchanges, tree lighting ceremonies, and visits with Santa Claus.

5. Agricultural powerhouse: North Dakota is known for its thriving agricultural industry, with crops like wheat, soybeans, and corn playing a major role in the state's economy. December 15 is a significant date for farmers in North Dakota, as it marks the beginning of the winter wheat planting season. During this time, farmers prepare their fields for the upcoming growing season.