Whether you are one of those who stops to read every one, or one of those that just take them for granted, historic markers are the fruit of the efforts of many groups and people who believe in an important maxim: that history deserves to be remembered.
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.