1. June 1, 1843 is considered the official start of the Oregon Trail. A group of pioneers known as the Great Migration began their journey westward from Independence, Missouri and traveled over 2,000 miles to settle in the Oregon Territory.

2. On June 1, 1851, the first telegraph message in Oregon was sent from Portland to Oregon City. The message simply stated "This is a test".

3. One of the worst disasters in Oregon history occurred on June 1, 1998 when the Thurston High School shooting took place. A 15-year-old student opened fire, killing two students and injuring 25 others.

4. On June 1, 1904, the Lewis and Clark Exposition began in Portland. The six-month long event celebrated the centennial of the famous explorers' journey and brought visitors from all over the world to the Pacific Northwest.

5. The Tillamook Burn, a series of devastating forest fires that burned over 350,000 acres in the Coast Range of Oregon, began on June 1, 1933. The fires continued to rage for over a month and resulted in millions of dollars in damages.