1. In 1932, the Washington Naval Treaty was signed on June 3, which aimed to limit the naval arms race among major powers. This treaty was a significant event in international relations and was signed by the US, UK, Japan, France, and Italy.

2. In 1983, the Seattle Seahawks became the first NFL team to play a game in Alaska on June 3. The Seahawks played a preseason game against the Green Bay Packers in Anchorage, bringing football to a region that was geographically isolated from most major cities.

3. On June 3, 2006, the Space Needle in Seattle celebrated its 45th anniversary. The iconic landmark was built for the World's Fair in 1962 and has since become a symbol of Seattle's skyline and a popular tourist attraction.

4. In 1916, the US Army opened the Camp Lewis training facility near Tacoma on June 3. During World War I, the camp served as a training site for soldiers heading to Europe, eventually becoming Fort Lewis and playing a significant role in military operations during WWII and beyond.

5. On June 3, 1989, the Washington State House passed a bill that created a special license plate featuring the Orca whale. The plate aimed to raise awareness of the endangered species and support conservation efforts. Today, the Orca plate is still available for purchase and remains a popular choice among Washington drivers.