Spanish colonies were territories established by Spain during the Age of Exploration, primarily from the late 15th century to the early 19th century. These colonies were located in the Americas, including regions that are now part of Mexico, Central America, and South America. The Spanish sought to expand their empire, spread Christianity, and exploit natural resources. The Spanish colonial system was characterized by the establishment of viceroyalties, which were large administrative regions governed by viceroys. The colonies were also marked by the encomienda system, where Spanish settlers were granted land and the labor of indigenous people. This led to significant cultural exchanges and the spread of the Spanish language.