The population of Iceland was quite small at this time. Maybe a North African slave ship wrecks on Iceland and the survivors manage to stay and introduce the religion that way.
Great ending to a really cool timeline. Thanks for writing it.
One question... what's up with Slovenia/Austria? I'd love to hear a bit about how that happened and what that country is like.
An al-Andalus divided along linguistic lines would be a mess. To say nothing of the various Christian tribes in the north (Where do the Eskudi even come from?), the provinces of Dar al Islam are also quite linguistically diverse. How could you separate the Berber shepherds of the Tulaytulah...
Here's a cool article I found today:
1917: How Germany Hopes To Redraw the Map of Europe
It includes a pretty detailed description of Germany's aims:
Courland and Lithunia will be annexed from Russia. As regards Poland, it is possible that we should negotiate with Russia. “In the Balkans...