1. On March 20, 1857, the city of Duluth was incorporated in Minnesota. Located on the shores of Lake Superior, Duluth is now the third-largest city in the state and a major shipping and transportation hub.

2. March 20, 1969, marked the opening of the iconic Minnesota landmark, the Mall of America. Spanning 5.6 million square feet, the mall has over 500 stores and attracts over 40 million visitors annually.

3. In 1855, the first territorial legislature of Minnesota convened on March 20 in St. Paul, the state capital. This marked a major milestone in the establishment of Minnesota as a state.

4. On March 20, 1942, the War Relocation Authority began the forced relocation of over 100,000 Japanese-Americans from the west coast to internment camps during World War II. Many Minnesotans opposed the internment and worked to support Japanese-Americans during this difficult time.

5. Finally, on March 20, 1934, the first Minnesota state high school basketball tournament was held in the old Minneapolis Armory. The tournament is now a beloved annual event, drawing huge crowds and widespread media coverage.