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alternatehistory.com
So as I'm sure you're pretty much all aware European and world politics over the last few hundred years has been dominated by the only a few powers.
Here they are:
United States
Britain
France
Russia
China
Germany
Japan
Italy
My challenge to you is from one or more POD from 1700 or later to butterfly away or into obscurity as many of these world powers as possible (or reduce them to second rate powers) in the 19th century and establish alternate world powers in their places!