1. On August 26, 1920, the 19th Amendment to the United States Constitution was ratified, giving women the right to vote. This historic event was celebrated in Oregon and across the nation.

2. In 1934, on August 26, the Timberline Lodge on Mount Hood was dedicated by President Franklin D. Roosevelt. The lodge, which was built as part of the Works Progress Administration (WPA), is still in operation today as a popular destination for skiing and hiking.

3. On August 26, 1940, a major wildfire broke out in the Tillamook Forest, destroying over 240,000 acres of timber. The fire was one of the largest in Oregon's history and led to efforts to better manage the state's forests.

4. In 1957, on August 26, the first section of Interstate 5 in Oregon opened between the California border and Portland. The highway would eventually stretch from Mexico to Canada and become a crucial transportation route for the West Coast.

5. On August 26, 1972, the Oregon Vortex opened to the public in Gold Hill. The attraction is known for its mysterious gravitational and optical illusions, which continue to fascinate visitors to this day.