Definition
Castile is a historical region in central Spain, the heartland of the Spanish language and culture. It's like the original source code for much of what we know as Spanish identity. Think of it as the birthplace of kings and queens, epic battles, and grand castles. Castile played a crucial role in the Reconquista, the Christian reconquest of Spain from Muslim rule. Today, Castile is divided into several autonomous communities, but its historical legacy remains strong.