1. Leap Day is celebrated every four years, and in 1928, February 29 landed on a Wednesday. This was notable because it was the first year where women were allowed to vote in Washington state.

2. The year 2000 was a Leap Year and February 29 fell on a Tuesday. It was also significant in Washington history because that year, the Seattle Mariners became the first team in baseball history to win 116 games in a single season.

3. On February 29, 1956, a severe windstorm hit the Pacific Northwest, causing extensive damage and power outages across Washington state. The winds were so strong that they caused the Tacoma Narrows Bridge to collapse.

4. In 1992, February 29 marked the opening day of the Seattle Mariners' spring training in Peoria, Arizona. This was the first year that the Mariners trained at the Peoria Sports Complex, which has since become their permanent spring training home.

5. February 29 is also known as Leap Day, and in 2004, Washington state officially recognized it as "Leap Year Day." Governor Gary Locke signed a proclamation stating that the day should be celebrated as a time for "joy, celebration, and reflection."