1. On September 9, 1850, the Oregon territorial legislature passed a law that prohibited African Americans from residing in the territory. This law was later repealed in 1926.

2. In 1922, the first airplane mail delivery in Oregon took place on September 9. The mail was flown from Portland to Salem, reducing delivery time from several hours to just 25 minutes.

3. The Oregon State Fair, which began in 1861, typically takes place during the first week of September. On September 9, 1958, President Dwight Eisenhower visited the Oregon State Fair and delivered a speech to the crowd.

4. On September 9, 1985, the Oregon State Capitol was added to the National Register of Historic Places. The building, which was completed in 1938, is known for its distinctive gold-plated pioneer statue on top of the dome.

5. In 2019, September 9 marked the start of the Oregon Behavioral Health Support Specialist program, which provides training and support for mental health and substance abuse professionals. The program is funded by a grant from the Substance Abuse and Mental Health Services Administration.