Countries that are taken from the start:

Ethiopia (takes up half of Africa, see map)
Spain (Including African colonies, see map)
China
Armenia
Prussia (Germany, Prussia, and Austria)
Georgia
Liberia
United Kingdom (If Feo/Snow sticks around)
Persia 

So that leaves most of Europe, parts of Africa (Including Egypt, Libya and parts of the South), most of Asia, and pretty much all of South, Central and North America.