1. In 1854, the Washington Territorial Legislature met for the first time in Olympia. The newly created territory encompassed the present-day states of Washington, Idaho, and parts of Montana and Wyoming.

2. On May 30, 1889, the John L. Wilson Building in Seattle was destroyed in a major fire. The blaze swept through the downtown area, burning 25 blocks and causing an estimated $10 million in damages.

3. In 1922, Seattle's Lincoln Park was opened to the public. Located on the shores of Puget Sound, the park features hiking trails, picnic areas, and a heated saltwater pool.

4. May 30, 1942, marked the beginning of the Battle of Midway, a decisive naval battle in the Pacific theater of World War II. The battle resulted in a significant victory for the United States against Japan.

5. In 1996, the Experience Music Project (now known as the Museum of Pop Culture) opened its doors in Seattle. The museum, founded by Microsoft co-founder Paul Allen, showcases exhibits on popular music, science fiction, and pop culture.