Sometimes perspective affect how we see things. As a Chicago sports fan, I can give you a specific example. When Dennis Rodman played for the Detroit Pistons, Chicago Bulls fans despised him. However, when he was traded to the Bulls, he suddenly became our savior and Chicago won three more NBA Championships with his help. So perspective makes a big difference.
In Spanish textbooks, we see a different perspective regarding history and cultural aspects. When I was in grade school and studied history, I remember learning about Sir Francis Drake as a naval hero who was second in command when England defeated the Spanish Armada in 1588. When I started taking university Spanish courses and reading history books in Spanish, I discovered that he was Francis Drake el pirata because he helped loot Spanish colonial cities and ships taking gold and silver to Spain. In the Spanish textbook Sueña that I’m using now, the book mentions that these pirates were financed by the governments of England and France. So, you see, perspective changes a person’s status in history.