- A sphere (from Greek σφαῖρα, sphaîra) is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. Formally, a sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the center of the sphere, and r is the sphere’s radius. The earliest known mentions of spheres appear in the work of the ancient Greek mathematicians.
- Seattle Neighborhoods: Seattle Center — Thumbnail History (historylink.org)
The Seattle Center, located north of downtown at the foot of Queen Anne Hill, is a cultural and entertainment campus built in 1962 for the Seattle World’s Fair. The World’s Fair helped to transform Seattle from a rather provincial backwater into a genuinely cosmopolitan port city, and it created a lasting legacy of important civic buildings for the arts, professional sports, and major community events, such as the annual Bumbershoot arts festival that takes place over Labor Day weekend.
