1. In 1917, the Everett Massacre occurred in Everett, Washington. The event was the result of a confrontation between the Industrial Workers of the World (IWW) and local law enforcement, which led to the deaths of five IWW members and two deputies.

2. On June 5, 1968, Senator Robert F. Kennedy was assassinated in Los Angeles, California. Although his death did not occur in Washington state, it had a significant impact on the state and the nation, as Kennedy was a leading candidate for the Democratic nomination for president.

3. In 1981, Washington state Governor John Spellman signed a law banning discrimination on the basis of sexual orientation in employment, housing, and other areas. The law was the first of its kind in the United States.

4. On June 5, 2000, the Seattle Mariners set a Major League Baseball record by winning their 20th consecutive game. The streak helped propel the Mariners to their first playoff appearance since 1997.

5. In 2017, the city of Seattle withdrew its bid to host the 2024 Summer Olympics. The decision came amid concerns about the cost of hosting the games, as well as potential environmental and social impacts.