Examples of the atrocities caused by Christianity

[Minimalist]

How about this one?

Count Raymond and his men, who were attacking the wall on the other side, did not yet know of all this, until they saw the Saracens leap from the wall in front of them. Forthwith, they joyfully rushed into the city to pursue and kill the nefarious enemies, as their comrades were already doing. Some Saracens, Arabs, and Ethiopians took refuge in the tower of David, others fled to the temples of the Lord and of Solomon. A great fight took place in the court and porch of the temples, where they were unable to escape from our gladiators. Many fled to the roof of the temple of Solomon, and were shot with arrows, so that they fell to the ground dead. In this temple almost ten thousand were killed. Indeed, if you had been there you would have seen our feet colored to our ankles with the blood of the slain. But what more shall I relate? None of them were left alive; neither women nor children were spared.

Fulcher of Chartres - Sack of Jerusalem - First Crusade

http://www.fordham.edu/halsall/source/fulk2.asp