What divides the Earth into the east and west hemisphere?

The best way to remember the difference is the equator is like a circle cutting the earth in roughly half, while the prime meridian goes up and down like a line north to south...thought that might help someone how to remember the fact.

Wow, I'm surprised how many people chose equator!

I sometimes go to the Lincolnshire coast where with one step I can cross from East to West.

Player #1489294, These are information that is learned in primary classes and standard schools. Just saying. ! ! !

Player #62752956, it used to be situated in Paris

So then Portugal, Ireland, most of Spain, parts of England, France, and Africa, and a little part of the Mediterranean Sea are all in the Western Hemisphere… Seems like Greenwich is not a very logical place for the Prime Meridian.

Not to be confused with “The Prime Directive”

easy for a land surveyor

KuizGiga, Honestly just read it wrong

Equator?? Really????

majority vote misleading, not good