Torreya californica is a species of conifer endemic to California, occurring in the Pacific Coast Ranges and the foothills of the Sierra Nevada. It is commonly known as California torreya or California nutmeg tree. It is one of only two species of genus Torreya that are native to North America. A slow-growing subcanopy tree, it is listed as "vulnerable" in the IUCN Red List.
Torreya californica resprouts after wildfire killed their main stems (yellow), but not their root crowns, along this trail in Stevenson State Park, Calif. April 2019.
Image: Torreya californica sapling Sequoia national park
Image: Torreya californica in Yosemite National Park 02
Go is an abstract strategy board game for two players in which the aim is to capture more territory than the opponent by fencing off empty space. The game was invented in China more than 2,500 years ago and is believed to be the oldest board game continuously played to the present day. A 2016 survey by the International Go Federation's 75 member nations found that there are over 46 million people worldwide who know how to play Go, and over 20 million current players, the majority of whom live in East Asia.
Go is played on a grid (usually 19×19). Game pieces (stones) are played on the grid line intersections.
Model of a 19×19 Go board, from a tomb of the Sui dynasty (581–618 CE)
Painting of a woman playing Go, from the Astana Graves. Tang dynasty, c. 744 CE.
Li Jing playing Go with his brothers. Detail from a painting by Zhou Wenju (fl. 942–961 CE), Southern Tang dynasty.