Biography Wikipedia
Wikipedia:
Hemisphere (from Ancient Greek ἡμισφαίριον hēmisphairion "half of a sphere") may refer to:
Half of a sphereAs half of the Earth:
a hemisphere of the EarthAny half of the (Earth-centered), celestial spherecultural hemisphereAs half of the brain:
Cerebral hemisphere, a division of the cerebrumHalf of the cerebellum, a smaller part of the brain
