1. In 1851, Portland, Oregon was incorporated as a city. Prior to this, it was known as Stumptown due to the many tree stumps left behind by the clearing of the area for development.

2. In 1890, the first state penitentiary in Oregon opened in Salem. It housed approximately 200 inmates at the time and is still in operation today.

3. In 1919, the Oregon State Legislature ratified the 19th Amendment to the U.S. Constitution, which granted women the right to vote. Oregon was one of the first states to do so.

4. In 1922, the Pioneer Courthouse in Portland was designated a federal courthouse. It had previously served as the courthouse for the District of Oregon before the creation of the U.S. District Court.

5. In 1986, a magnitude 5.5 earthquake struck the coast of Oregon. It caused minor damage but was the largest earthquake to hit the state in over a decade.