Spanish America in the age of the Bourbons
A series of important changes occurring in Spanish America in the 18th century is often associated with dynastic changes in Spain—the replacement of the Habsburgs, who had ruled Spain since the early 16th century, by a branch of the French Bourbons in 1700. Little altered in the Spanish territories until more than 50 years later, however, especially during the reign of Charles III (1759–88). Internal evolution and worldwide developments were doubtless more important in bringing about the new phenomena than the policy of a particular dynasty or ruler.
Spanish viceroyalties and Portuguese territoriesSpanish viceroyalties and Portuguese territories in the Western Hemisphere, 1780.Encyclopædia Britannica, Inc.