Answer :
Final answer:
Spain has maintained its territory since the 15th century through events like the Reconquista and exploration of the Americas.
Explanation:
Spain is a country that has maintained its territory since the 15th century. During the 15th century, Spain underwent the Reconquista, a period of significant territorial expansion where various regions were united under Spanish rule. This consolidation of territory continued with the exploration and colonization of the Americas, solidifying Spain's holdings.
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