July 18 is an important day in the history of Oregon. Here are 5 interesting facts about this day in Oregon's history:

1. On July 18, 1945, the United States government tested the first atomic bomb at Alamogordo, New Mexico. This event had a significant impact on the development of nuclear weaponry and the subsequent arms race, as well as the Cold War.

2. On July 18, 1972, a massive wildfire broke out in the Wenatchee National Forest, near the town of Cashmere, Washington. The fire eventually spread into Oregon, consuming more than 45,000 acres of land and forcing the evacuation of many residents.

3. On July 18, 1984, Portland's Union Station was added to the National Register of Historic Places. The station was built in 1896 and is known for its distinctive Romanesque Revival style and ornate interior.

4. On July 18, 1990, the United States Congress passed the Americans with Disabilities Act (ADA), which prohibits discrimination against individuals with disabilities in employment, transportation, public accommodations, and other areas.

5. On July 18, 2011, the first legal same-sex marriages were performed in the state of New York, sparking a national conversation about marriage equality. Oregon would follow suit in May 2014, when a federal judge struck down the state's ban on same-sex marriage.