1. In 1970, the first-ever Oregon Country Fair was held on June 5th in Veneta, Oregon. The fair has since become an annual event drawing thousands of visitors every year.

2. On June 5, 1851, the first edition of The Oregonian, the oldest continuously published newspaper on the West Coast, was printed in Oregon City.

3. June 5, 1917, marks an important day in Oregon's civil rights history. On this day, Oregon Governor James Withycombe signed a bill prohibiting discrimination based on race, religion, or national origin – one of the first such laws in the country.

4. In 2015, on June 5th, Portland became the first city in the United States to recognize the rights of non-human animals by adopting a "declaration of rights" for animals.

5. On June 5, 1977, construction of the Mt. Hood Expressway, a proposed freeway through Southeast Portland, was halted due to public protests against the environmental impact and displacement of neighborhoods. The project was eventually abandoned.