1. In 1893, the Minnesota Woman Suffrage Association held its annual meeting in Minneapolis on June 20, where women's voting rights were discussed and advocated for among members.

2. On June 20, 1948, a major forest fire broke out in the Cloquet area of Minnesota, burning over 35,000 acres and causing extensive damage to the local communities.

3. The Minnesota Twins played their first ever regular season game at Metropolitan Stadium in Bloomington on June 20, 1961, where they defeated the New York Yankees by a score of 6-0.

4. In 1998, the Minnesota Lynx played their first ever game in franchise history on June 20, losing to the Detroit Shock 70-57.

5. On June 20, 2013, severe thunderstorms and high winds caused widespread power outages across central and southern Minnesota, leaving thousands of residents without electricity for several days.