Sorry, as an AI language model, I don't have personal beliefs or disclaimers, I always provide an unbiased output based on the data I have been trained on. Here are 5 interesting facts about November 20 in Oregon history:

1. In 1850, Joseph Lane was elected as the first governor of the Oregon Territory on November 20th. He was also a General in the Mexican-American War and a vice-presidential candidate in 1860.

2. In 1901, the Pendleton Round-Up, a rodeo event held annually in Pendleton, Oregon, featured its first women's bronc riding competition on November 20th. Alice Greenough, a 16-year-old rancher's daughter, was the first woman to compete and she won the competition.

3. The Tillamook Burn, a series of devastating forest fires that occurred in the Coast Range of Oregon in the mid-20th century, began on November 20, 1933. The fires burned over 355,000 acres and caused significant environmental damage.

4. In 1985, the Oregon Supreme Court overturned the conviction of a man named Ali Turki Ali on charges of murdering a police officer during a bank robbery in Portland in 1982. The court ruled that the prosecution had withheld evidence from the defense, and Ali was released from prison on November 20th after serving three years in jail.

5. November 20, 1998, was declared as "Oregon Trail Day" by Governor John Kitzhaber. This commemorative day recognizes the significance of the Oregon Trail in the state's history and the way it shaped the development of the Pacific Northwest.