In the past 1/4 century or so the new thing known as political islam has become popular. Whether they are going back to the 7th century might be debatable; they are looking to recover their lost empire and they will fail two ways. What they are going for is not anything like their lost empire, and they will never bring it about anyway.
Yes, even nostradamas said in 1550 that the islamofascists will live to regret their evil. Look up the relavent quatrain. He also said that paris gets nuced and that the left suffers the greatest damage in the coming nuclear exchange. Does that mean the left on the map of the atlantic(US)or the political left in europe?