Playground bars. "Playground" is also used as a metaphor to describe a place for some types of play. For example, a laboratory may also be referred to as playground for a scientist. Playground A playground, playpark, or play area is a place specifically designed to enable children to play there. It is typically outdoors. While a playground is usually designed for children, some target other age groups. Berlin's Preußenpark for example is designed for people aged 70 or higher. A playground might exclude children below a certain age. Modern playgrounds often have recreational equipment such as the seesaw, merry-go-round, swingset, slide,
North America of the last glacial period, in what is known as the late glacial maximum, occurring around 13,000 years ago. The oldest petroglyphs in North America date from 15,000 to 10,000 years before present, but some South American rock painting dates to 36,000 to 25,000 years ago (with the more recent dating being favored). Genetic research and anthropology indicate additional waves of migration from Asia via the Bering Strait during the Early-Middle Holocene. Before contact with Europeans, the natives of North America were divided into many different polities, from small bands of a few families to large empires. They lived in