Millions? Cite a source.
How many have died since the First Crusade under the Cresent? Do YOU have numbers?
I'm not going to do your research for you, but am amazed that you have not heard of what is probably one of the bloodiest chapter in history. Islamic historians, there own worst enemy, have recorded with great pride the slaughter of millions of Hindus following their invasion of northern India in 800 AD. There records, by the way, are in close agreement with the Hindu's.