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Western Hemisphere
Half of Earth west of the Prime Meridian / From Wikipedia, the free encyclopedia
For the metonymous location, see Americas.
The Western Hemisphere is the half of the planet Earth that lies west of the Prime Meridian—which crosses Greenwich, London, England—and east of the 180th meridian.[1][2] The other half is called the Eastern Hemisphere. Geo-politically, the term Western Hemisphere is often used as a metonym for the Americas or the "New World", even though geographically the hemisphere also includes parts of other continents.[12]
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