Iceland is actually super common in some patches, when Sweden is strong. They conquer all of mainland Norway, so Norway can take the decision to form Iceland.
Silly map, land can't be sea!
Did I win a contest about weirdest protentantism spawn?
Just look at where 3 centers of protestantism are...
Also around 1480 I randomly discovered provinces/regions all over the world. This included all of Japan, a huge chunk of the Caribbean + Colombia and several hordes in Central Asia.
View attachment 596185
This is in the latest patch with only some cosmetic mods that dont effect checksum. Notice in the upper right that this run is achievement eligible.
Internal strife in Byzantium? Seems legit to meI uh... huh.
My guess: