1. The Space Needle opened in Seattle on February 28, 1962, just in time for the World's Fair held later that year. The iconic structure has since become a beloved symbol of the city.

2. On February 28, 2001, the Nisqually earthquake shook the Pacific Northwest region, causing widespread damage and disruption. The 6.8 magnitude quake, centered near Olympia, Washington, was felt as far away as Vancouver, Canada and Portland, Oregon.

3. The first motorized streetcar service in Tacoma, Washington began operation on February 28, 1891. The electric-powered cars quickly became a popular mode of transportation in the city.

4. In 1981, on February 28th, the St. Helens bathroom murder occurred. The body of eight-year-old Ricky Lee St. John was discovered in a restroom stall at the Lewis and Clark State Park in Toledo, Washington. The case remains unsolved to this day.

5. February 28, 1954, saw the infamous "Atomic Man" incident in Hanford, Washington. Harold McCluskey, a worker at the Hanford Site nuclear production facility, was accidentally exposed to multiple doses of radiation during a routine cleanup. Despite suffering from severe burns and other health problems, McCluskey survived and lived for another 48 years.