1) In 1919, Wisconsin became the first state to ratify the 19th Amendment, granting women the right to vote. This was a significant moment in the fight for women's suffrage and marked the beginning of a new era of equal voting rights for all citizens.

2) On June 18, 1943, the first female Marine Corps officer candidate training began at Camp Lejeune in North Carolina. Among the women who graduated from this historic program was Wisconsin native Dorothy Olsen, who went on to serve as a pioneer in the field of aviation.

3) In 1963, President John F. Kennedy visited the University of Wisconsin-Madison to deliver a speech on the importance of international relations and nuclear disarmament. His visit sparked widespread enthusiasm and drew thousands of spectators to the campus.

4) June 18, 1983 marked the opening of the Racine Art Museum, a world-renowned institution dedicated to promoting and preserving contemporary craft and design. The museum houses an extensive collection of art and artifacts from a variety of cultures and time periods, and hosts regular exhibitions and educational programs.

5) On June 18, 2014, the Wisconsin Supreme Court issued a historic ruling striking down the state's ban on same-sex marriage. This landmark decision paved the way for thousands of same-sex couples to legally wed in Wisconsin and marked a crucial victory for the LGBTQ+ rights movement.