- Seattle — Thumbnail History (historylink.org)
Seattle is the largest city in Washington state and its economic capital. Settled in 1851, its deep harbor and acquisition of Puget Sound’s first steam-powered sawmill quickly established it as a center of trade and industry. It gained the Territorial University (now University of Washington) in 1861, but was snubbed by the Northern Pacific Railroad in 1874 when it picked Tacoma as its western terminus. Despite this, the town prospered thanks to independent railroad development fueled by local coal deposits…
- Rock (geology) (Wikipedia)
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth’s outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects.