1. In 1862, the Civil War was raging across the United States, but on December 4, the Dakota War raged on in southwestern Minnesota. The Battle of Wood Lake took place, which ultimately led to the Dakota's surrender and exile from Minnesota.

2. December 4, 1917, was the day that a massive explosion rocked the city of Duluth. The explosion, which occurred at the Duluth Armory, was caused by munitions that were being stored there during World War I. The blast killed four people and caused extensive damage to nearby buildings.

3. On December 4, 1956, the Minnesota Vikings were granted an NFL franchise. The team played its first game in 1961 and has become a beloved Minnesota sports institution.

4. In 1972, the infamous "Kensington Runestone" was donated to the Minnesota Historical Society on December 4. The stone, which some claim to be evidence of pre-Columbian Vikings in Minnesota, continues to be a source of controversy and debate among scholars.

5. December 4, 1997, was the day that the Mall of America in Bloomington opened a $315 million expansion. The addition included over 2.5 million square feet of retail space, an amusement park, an aquarium, and more, making it the largest mall in the United States.