A lesson from the long history of the Goodyear blimps is the realization that airships are exceedingly difficult to fly. That fact was well demonstrated 92 years ago, when the blimp Columbia crashed, spectacularly, in the middle of New York City.
The Reconquista, or Christian reconquest of Iberia, took nearly 800 years. The fighting did not come without great attempts by Muslim powers across the strait trying to reestablish their presence in mainland Europe. The last gasp of that effort came in the 1330s, when the powerful Marinid sultanate of what is modern Morocco invaded in an attempt to reverse Christian gains and secure the perilous position of the Sultanate of Granada.