World wiki:
>This article is about the World, meaning the Earth. For uses of the specific phrase "The World", see The World (disambiguation) In English, world is rooted in a compound of the obsolete words were, man, and eld, age; thus, its oldest meaning is "age or life of man". Its primary modern meaning is the planet Earth, especially when capitalized: the World. In this sense, a world map is a map of the surface of the Earth. World can also refer to human population in general or to a distinct group of people.
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Skull wiki:
l, or cranium, is a bony structure of Craniates which serves as the general framework for a head. The skull supports the structures of the face and protects the brain against injury.
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