Jihad vs Crusades

Jihad vs Crusades
https://www.youtube.com/watch?v=I_To-cV94Bo

veja também

How the Crusades Saved Europe and America 

https://www.youtube.com/watch?v=cMjUFBYEzqQ

Mitos das cruzadas
https://www.youtube.com/watch?v=imTY5izhTDo

We are often told of the greatness of the Islamic Golden Age. But how much actual gold was there? And why does Islam do so poorly in intellectual work today?

https://www.youtube.com/watch?v=QwXtTwNvWXc