Siamanto, looks like I wont be able to prove anything to you short of lending you my time-machine, here, take a puff....
As for the military: pound for pound the asiatic/turkic horse archer was unstoppable untill the wider circulation of gunpowder ie. about the time the Turks were turned back in the Balkans.
that may be, but as far as I know by the time of the Crusades allready the Church had very much become a pillar of the State or rather a means of keeping the commoners passive and obedient to their earthly masters. And yet it was after this period that Europe began to to assert its power.