Some comments about your great mod;
On your map the Azores (in the Atlantic) have a goody hut on them but when the Portugese (re)discovered them in 1427 AD the islands where uninhabited. I say (re)discovered because some records state the islands were discovered by others before that, maybe even by the Carthaginians in 300 BC. In any case no people were there to actually fill the goody hut
Another idea would be to add a tile of grassland/plains in Greenland to reflect the Norman (Viking) colony that thrived there between 1300 and 1500 AD until abandoned after climatological changes (sometimes refered to as the little Ice Age).
Although I like the idea that certain terrains cant be settled by the various types of settlers I sometimes find it a bit of a shame the computer players cant get their 'head' around the trick of first clearing a forest(hill) so they can settle the area. For instance, when playing the Chinese I can take my sweet time colonizing Siberia and Russia by clearing various patches.
Perhaps you could come up with a new terrain type reflecting this type of settlement (something between grassland and tundra - which could also be used in the formentioned Greenland case). Another idea would be to allow the upgraded versions of the settler (or perhaps settlers of certain races) to settle additional terrains (like the forresthills for instance).
Just some thoughts for this mod that would help it reflect history in the mentioned areas a bit better.
On your map the Azores (in the Atlantic) have a goody hut on them but when the Portugese (re)discovered them in 1427 AD the islands where uninhabited. I say (re)discovered because some records state the islands were discovered by others before that, maybe even by the Carthaginians in 300 BC. In any case no people were there to actually fill the goody hut

Another idea would be to add a tile of grassland/plains in Greenland to reflect the Norman (Viking) colony that thrived there between 1300 and 1500 AD until abandoned after climatological changes (sometimes refered to as the little Ice Age).
Although I like the idea that certain terrains cant be settled by the various types of settlers I sometimes find it a bit of a shame the computer players cant get their 'head' around the trick of first clearing a forest(hill) so they can settle the area. For instance, when playing the Chinese I can take my sweet time colonizing Siberia and Russia by clearing various patches.
Perhaps you could come up with a new terrain type reflecting this type of settlement (something between grassland and tundra - which could also be used in the formentioned Greenland case). Another idea would be to allow the upgraded versions of the settler (or perhaps settlers of certain races) to settle additional terrains (like the forresthills for instance).
Just some thoughts for this mod that would help it reflect history in the mentioned areas a bit better.