Muslim Russia

Okay... a friend of mine who was plating Empire: Total War gave me the idea for this thread.

Basically, he was playing as Prussia. He succesfully invades Egypt and packed off all the imams to Russia, where they converted everyone there and Russia became a Muslim nation overnight.

I know that this POD is not very practical. But WI Russia was an Islamic state? How would it arrive at that state and what would the results be? Would a reformation have occured to allow for the Koran to be weitten in Cyrillic? Would it have affected the basic doctrines of Communism?
 
A good POD would be Prince Vladimir of Kiev's conversion in 971: he invited Christian, Muslim, and Jewish representatives to see which religion he should convert to. He chose Christianity, according to some sources because the other faiths wouldn't let him keep drinking, though more likely for the political benefits of an alliance with the Byzantines. Anyway, this would butterfly away a lot of history as we know it.
 
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