- Report on Designation: Securities Building (seattle.gov)
The Securities Building is directly associated with the initial period of downtown commercial expansion that occurred between 1902 and 1920 as a result of local economic prosperity after the Klondike Gold Rush and in tandem with explosive population growth and suburban neighborhood development.
- Carina–Sagittarius Arm (Wikipedia)
The Carina–Sagittarius Arm (also known as the Sagittarius Arm or Sagittarius–Carina Arm, labeled -I) is generally thought to be a minor spiral arm of the Milky Way galaxy. Each spiral arm is a long, diffuse curving streamer of stars that radiates from the Galactic Center. These gigantic structures are often composed of billions of stars and thousands of gas clouds. The Carina–Sagittarius Arm is one of the most pronounced arms in our galaxy as many HII regions, young stars and giant molecular clouds are concentrated in it.