1. Pearl Harbor Remembrance Day: On December 7, 1941, the bombing of Pearl Harbor occurred in Hawaii, which led to the United States' entry into World War II. In Oregon, this day is observed as Pearl Harbor Remembrance Day to honor and remember those who lost their lives in the attack.

2. Oregon's First Newspaper: The Oregon Spectator, the first newspaper in Oregon, was published on December 7, 1846. It was founded by Joseph L. Meek, a fur trapper, and politician.

3. Oregon Statehood: Oregon was admitted to the Union as the 33rd state on December 7, 1859. This anniversary is celebrated as Statehood Day in Oregon, which recognizes the state's unique history and culture.

4. Japanese American Internment: On December 7, 1941, the same day as the attack on Pearl Harbor, the United States government authorized the internment of Japanese Americans living on the West Coast. Many of these individuals were sent to internment camps in Oregon, which has had a profound impact on the state's Japanese American community.

5. Bridge Collapse: On December 7, 1978, the Hood River Bridge in Oregon collapsed due to high winds. Two cars plunged into the Columbia River, killing six people. The tragedy brought attention to the need for better infrastructure and safety measures in Oregon.