In 1453, Constantinople fell, and became Istanbul.
This marked the end of the eastern Roman empire.
This completed the islamization of eastern leg of the empire, which had been going on for centuries.
That islamization fueled the call for the crusades.
Even though the western Roman empire fell in 453, the later attempts at its islamization through conquest failed.
Islam had tried to conquer the western Roman empire, at various times and places.
They were stopped by Charlemagne, and later stopped at Vienna, and were pushed back out of Italy and Spain.
These days islam is flooding into the western Roman Empire by immigration, legal and illegal, and lately by refugees.
Also, the birthrate amongst the islamic populations in the western Roman empire, greatly exceeds others.
At what point will this affect the voting bloc in France and in Germany?
Before that, what if they revolted in France?
Could a 2nd French revolution happen, resulting in islamic elements taking power?
How quickly would the current government collapse during a revolt?
Would the army fight the masses in a bloody civil war, or would they end up backing those that successfully take power?
If this is successful, how long before it could ignite similar things in Germany.
Could it be possible that in not too many years, that a number of the states in the EU, would have islamic elements at their helm?
So, how many years before the western Roman empire completes islamization?
Could both legs of the Roman empire be essentially islamic, before, or during the tribulation?
How would that affect our understanding of prophecy fulfillment?