I was Sweden-Scandinavia, so all the blue in the new world is mine. Aside from that, Baluchistan, Kaffa, Dzungar, Nepal and Shu are also vassals.
I had Tombouktu as a vassal, but since he had lands touching the Mediterranean I had to betray him in order to get the Mare Nostrum achievement, so my OE is through the roof and I'm 10 months from the Aspiration for Liberty disaster.
Otherwise, I think that's my best game yet.