1. In 1983, the Oregon Vortex, a roadside attraction located in Gold Hill, became a registered historical site with the National Register of Historic Places. The vortex, known for its optical illusions and strange gravitational effects, has been a popular destination for tourists and paranormal enthusiasts since the early 1900s.

2. On September 6, 1867, the Oregon State Agricultural Society held its first annual fair in Salem. The event featured exhibits and competitions in agriculture, livestock, and other fields, and attracted over 10,000 visitors. Today, the Oregon State Fair continues to be a popular tradition, drawing crowds from across the state.

3. In 1991, the Oregon Historical Society opened its newly renovated museum in downtown Portland. The museum, which showcases Oregon's rich history through interactive exhibits and artifacts, has become a staple of the city's cultural scene.

4. On September 6, 1957, the Portland Rose Garden officially opened to the public. The garden, located in Washington Park, features over 10,000 roses in a variety of colors and styles, and has been a beloved destination for locals and tourists alike for over 60 years.

5. In 1972, the iconic Tillamook Rock Lighthouse, also known as "Terrible Tilly," was decommissioned after nearly a century of service. The lighthouse, located on a rocky outcropping off the coast of Tillamook, was notorious for its harsh conditions and isolation, and is now a popular spot for sightseeing and photography.