1. On April 21, 1938, the Oregon State Capitol Building was dedicated. The building, located in Salem, was constructed using local materials such as timber, marble and granite. Today, it remains a symbol of Oregon’s robust political history.

2. April 21, 1910 was the day that the town of Vernonia, Oregon was incorporated. Located in Columbia County, this small town is known for its logging industry and is home to the Vernonia Lake and the Vernonia Pioneer Museum.

3. On April 21, 1943, the USS Oregon BB-3 was decommissioned in Bremerton, Washington. This ship was part of the U.S. Navy's Great White Fleet, which sailed around the world from 1907 to 1909. Today, remnants of the ship can be found in various museums across the country.

4. April 21, 1977 marked the opening of the Oregon Zoo's Northern Trail Exhibit, which features animals native to the Pacific Northwest. The exhibit provides visitors with the opportunity to see grizzly bears, cougars and other wildlife in an environment that closely resembles their natural habitats.

5. The Mt. Angel Abbey Library, located in Mt. Angel, Oregon, was dedicated on April 21, 1969. The library contains a vast collection of rare books and manuscripts, including works by St. Augustine and St. Thomas Aquinas. Visitors can browse the library's collection of over 200,000 volumes by appointment.