1. On August 29, 1846, the first wagon train arrived in Oregon City, marking the end of the Oregon Trail journey for hundreds of pioneers. The group had left Independence, Missouri, in May and traveled over 2,000 miles to reach their destination.

2. The Oregon State Capitol building was dedicated on August 29, 1938. The building, located in the city of Salem, is home to the state legislature and several state offices. It is notable for its distinctive Art Deco style and impressive rotunda.

3. In 1970, on August 29, the notorious Vortex I music festival was held in Estacada, Oregon. This outdoor event was organized as a "biodegradable" alternative to the American Legion's annual convention, which was being held in Portland at the same time. Vortex I attracted thousands of hippies and counterculture enthusiasts for a weekend of music, drugs, and activism.

4. On August 29, 1988, Mount Hood National Forest experienced the worst wildfire in its history. The blaze, known as the 19-30 Fire, burned over 40,000 acres and destroyed over 130 homes. The fire was started by a logging crew and exacerbated by strong winds and drought conditions.

5. Olympic gold medalist Ashton Eaton was born on August 29, 1988, in Portland, Oregon. Eaton is considered one of the greatest decathletes of all time, having won back-to-back gold medals in the event at the 2012 and 2016 Summer Olympics. He also holds the world record for the decathlon.