1. On June 23, 1925, the first Forestry plane crash occurred in Oregon. The plane was piloted by Floyd W. Schmoe and crashed near Port Orford, killing Schmoe and a passenger. This tragedy highlighted the dangers faced by early pilots in the field of forestry.

2. In 1972, the Oregon Shakespeare Festival opened its new outdoor theater, the Elizabethan Stage. The stage, which is modeled after the Globe Theater in London, has since become a major attraction in Ashland and is a prominent venue for the performing arts in Oregon.

3. June 23, 2013 marked the day that same-sex marriage became legal in Oregon. In a landmark decision, U.S. District Judge Michael McShane struck down a ban on same-sex marriage in the state, allowing gay and lesbian couples to legally wed.

4. On this day in 1976, the popular Oregon Vortex attraction opened to the public in Gold Hill. The site features several optical illusions and strange phenomena, such as balls that appear to roll uphill and people who appear to change heights depending on where they stand.

5. In 1843, a group of pioneers known as the "Great Migration" arrived in Oregon on June 23, marking the beginning of significant westward expansion in the United States. The migration, which included thousands of settlers, helped to establish Oregon as a major destination for pioneers seeking new opportunities in the west.