<P> In geography and cartography, the hemispheres of Earth refer to any division of the globe into two hemi spheres (from Ancient Greek ἡμισφαίριον hēmisphairion, meaning "half of a sphere"). </P> <P> The most common such divisions are by latitudinal or longitudinal markers: </P> <Ul> <Li> North--South <Ul> <Li> Northern Hemisphere, the half that lies north of the Equator </Li> <Li> Southern Hemisphere, the half that lies south of the Equator </Li> </Ul> </Li> <Li> East--West <Ul> <Li> Eastern Hemisphere, the half that lies east of the prime meridian and west of the 180th meridian </Li> <Li> Western Hemisphere, the half that lies west of the prime meridian and east of the 180th meridian </Li> </Ul> </Li> </Ul> <Li> North--South <Ul> <Li> Northern Hemisphere, the half that lies north of the Equator </Li> <Li> Southern Hemisphere, the half that lies south of the Equator </Li> </Ul> </Li>

Where do the eastern and western hemispheres meet
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