- Holocene (Wikipedia)
The Holocene (/ˈhɒl.əsiːn, -oʊ-, ˈhoʊ.lə-, -loʊ-/) is the current geological epoch. It began approximately 9,700 years before the Common Era (BCE) (11,650 cal years BP, or 300 HE). It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.
- Gum Wall (Wikipedia)
The Gum Wall is a brick wall covered in used chewing gum under Pike Place Market in Downtown Seattle, Washington, United States. It is located on Post Alley near Pike Street, south of the market’s main entrance off 1st Avenue. Parts of the gum coating alongside the walls are several inches thick, and the coating is 15 feet (4.6 m) high along a 50-foot-long (15 m) section. The Market Theater Gum Wall has become a tourist attraction and local landmark since it was unintentionally created in the 1990s.
