Today We Celebrate First Terrorist Day

With the second great Jihad of 1453, Islam conquered Constantinople and took away Europe's land routes to the East.
This set the stage for what indigenous people would have thought of as being a Christian 'Jihad' in the  Americas.
The subjugation and/or dismemberment of non-believers, rape, looting and pillaging, the forced conversion of those of a foroegn faith...
Al Qaeda has nothing on the destruction and atrocities committed by those seeking to spread the faith of those who refused swim the Tiber.

(I know violence in the Americas existed before Columbus, but so did original America.)