Christmas 1941 was not the first time that Franklin Roosevelt and Winston Churchill had met in person, nor would it be the last. But the meeting over the first holiday season as allies in the largest war in human history was, perhaps, the most consequential, and, quite possibly, the most important Christmas ever at the White House.
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.