Spain HAD ruled the world, so it's pathetic to see it refight, and this time, lose to the Moors.
And as far as "HAVE we???" Uhhh, yeah. (Which part of "we" are you talking about, masked man? And I don't mean Zorro) After WWII, we absolutely dominated the world. And as far as for how long - in terms of events, we have dominated it as long as any world power in past history, when it took 20 years to amass an army or navy, and about 3 years for them to travel to meet the opponent. We just don't "prove" it by slaughtering lesser powers, just because we can.