1. On September 28, 1907, the Pike Place Market opened in Seattle, Washington. It is one of the oldest continuously operated public farmers' markets in the country and attracts thousands of visitors each year.

2. In 1927, the Columbia Basin Project was proposed in Washington State, which aimed to create a large-scale irrigation system in the region. The project was eventually completed in the 1940s and transformed the arid landscape into fertile farmland.

3. On September 28, 1967, Governor Daniel J. Evans signed legislation that established the Washington Environmental Council, which was created to promote environmental protection and raise awareness of environmental issues in the state.

4. In 1987, the Seattle Symphony Orchestra made its debut in Benaroya Hall, a new concert hall in downtown Seattle. The hall is renowned for its superior acoustics and has since become a cultural landmark in the city.

5. On September 28, 2019, the Seattle Storm won their third WNBA championship, defeating the Connecticut Sun in a decisive Game 3. The team's impressive win marked the end of an exciting season and cemented their legacy as one of the most dominant teams in women's basketball history.