1. In 1854, the Territory of Washington was created by an act of Congress. This area eventually became the 42nd state, admitted to the Union in 1889.

2. On March 30, 1933, Washington State Governor Clarence D. Martin signed the first unemployment compensation law in the United States. The law provided for weekly payments to eligible workers who had lost their jobs through no fault of their own.

3. In 1981, the Seattle Mariners baseball team played their first game at the newly renamed Kingdome stadium. The Mariners lost to the California Angels, but the stadium would become the team's home for the next 24 years.

4. On March 30, 1995, Washington State passed the first statewide smoking ban in the United States. The ban prohibited smoking in most public places, including restaurants, bars, and other indoor spaces.

5. In 2017, the Washington State Legislature passed a bipartisan bill that would make it easier for people with prior criminal convictions to get jobs and housing. The bill was signed into law by Governor Jay Inslee on March 30 of that year.