1. In 1917, the deadliest train accident in Oregon's history occurred on July 5th when a train derailed and crashed into a ravine near Salem, killing 41 people and injuring many more.

2. On July 5, 1947, the famous UFO sighting occurred in Roswell, New Mexico, which has been the subject of much speculation and debate over the years. Although this event didn't happen in Oregon, it has become an important part of American popular culture and continues to fascinate people around the world.

3. In 1962, the Portland Trail Blazers were founded on July 5th, becoming the first major professional sports team in Oregon. The team has since won one NBA championship and has been a beloved institution in the state for many decades.

4. On July 5th, 1984, the city of Portland officially opened its first light rail line, which has since expanded to become the MAX system that serves millions of commuters throughout the region. This milestone in transportation history helped to transform Portland into the dynamic and diverse city it is today.

5. In 2016, the popular television show Portlandia aired its final episode on July 5th. The sketch comedy series had become a cultural touchstone for many viewers, and its quirky take on life in Portland helped to put the city on the map as a center of creativity and innovation.