1. A deadly heat wave hit Oregon in 2021: On June 29, 2021, Oregon experienced record-breaking temperatures during a heat wave that lasted for several days. The state's highest-ever recorded temperature of 119 degrees Fahrenheit was recorded in the city of Portland, and the heat wave was responsible for at least 116 heat-related deaths across the state.

2. Oregon's first state park was established: On June 29, 1922, Oregon Governor Ben Olcott signed legislation that established the state's first state park. The park, which is located near Hood River, was named Columbia River Gorge State Park and is now one of the most popular outdoor recreation spots in the state.

3. The Oregon State Penitentiary was established: On June 29, 1866, the Oregon State Penitentiary in Salem opened its doors for the first time. The facility was built to house prisoners from around the state, and it is still in operation today.

4. The Tillamook Burn devastated Oregon forests: On June 29, 1933, a massive forest fire known as the Tillamook Burn began in the Coast Range of Oregon. The fire burned over 300,000 acres of forest over the course of several years, and it had a long-lasting impact on Oregon's timber industry and environment.

5. Oregon officially banned slavery: On June 29, 1859, Oregon became the first state to draft a constitution that included a ban on slavery. The state's constitution was approved by Congress later that year, and Oregon officially became a free state. However, it is worth noting that the state's early history was marked by discrimination against Black people and attempts to discourage them from settling in the state.