1. On March 22, 1927, Oregon's famous "Florence Nightingale of the Klamath" passed away. Marie Equi was a feminist, socialist, physician, and LGBTQ rights activist who dedicated her life to serving the sick and underserved populations.

2. March 22, 1933, marked the beginning of Oregon's Prohibition era. The state had voted for statewide prohibition in 1914, but it was not enforced until the passage of the 18th Amendment to the U.S. Constitution in 1919. Prohibition lasted until 1933 when the 21st Amendment was ratified.

3. Oregon State University made history on March 22, 1990, when it became the first university in the U.S. to grant a Ph.D. in sustainable agriculture. The degree program focused on the interdependent relationships between crops, soil, water, air, and other natural resources.

4. On March 22, 1884, the first telephone line was installed in the town of Lakeview, Oregon. It connected the town with the railroad station nearly two miles away, and was considered a major technological achievement at the time.

5. March 22, 1954, saw the opening of the Dalles Dam on the Columbia River. The dam helped control flooding in the region and provided a reliable source of hydroelectric power for the Pacific Northwest. Today, it is still one of the largest hydroelectric dams in the U.S.