[Sparta]

The only time Islamic forces were able to gain a foothold in the West was when we were divided. In the 700s, Europe was in the midst of the Dark Ages. Technology was advancing at a slow pace and much of Europe was in the stranglehold of Feudalism. When Constantinople fell in 1453, the Muslims were facing an isolated, dying empire. When the Muslims engaged the Spanish, Venetian, and Papal Fleet at Lepanto, they had wintered in French ports. Mohommad's(sp) early successes were against equally barbaric tribes in Arabia.

[Notforprophet]

How about the capture of Acre, in 1191 during the Third Crusade?