The answer depends on what it is that the earth is meant to be dividing. I was not aware that the earth divided anything in two halves!
Why is the earth divided into very long units of time
Northern and southern half of the earth divided by the equator. Eastern and western half of the earth divided by a meridian.
Infinite
caca
hemispheres
hemispheres
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Yes
The Earth is divided into the Northern Hemisphere and the Southern Hemisphere. The Equator acts as the dividing line between the two hemispheres.
The Earth is divided into 360 degrees of longitude, with each degree measuring the Earth's rotation in an east-to-west direction.
Earth history is primarily divided into eras.