Many people have heard of King Ferdinand and Queen Isabella of Spain. However, only some know how much they have accomplished. They are perhaps best known for financing the voyages of Christopher Columbus, but they also contributed greatly to the unity of Spain ("Isabella l"). Together, they united many of the kingdoms of the Iberian Peninsula to form what is today Spain. Through the unification of Spain, King Ferdinand and Queen Isabella strengthened Spain into a dominant global economic power, enabling the spread of Christianity and the colonization of a new world. Before Ferdinand and Isabella married, the Moors controlled much of the Iberian Peninsula. Peninsula. They desperately wanted to unify Spain and make it a Christian nation (“Isabella and Ferdinand”). Isabella carefully concocted a plan that would advance her ambition. She proposed to Ferdinand that they marry, which would unify Castile and Aragon and launch the unification of Spain (“Ferdinand V”). Isabella then wanted to strengthen her control over Spain by establishing the Spanish Inquisition. His role was to abolish heresy and make Spain a Christian nation (“Spain: History”). The Inquisition officially lasted from 1478 to 1808 (“The Influence of Queen Isabella in the New World”). The first problem they tried to solve during the Inquisition was that of the Moors. At first, they tried to preach to the people, without forcing them to convert to Catholicism. However, plans quickly changed and they decided it was more effective to use forced conversion or expulsion against the Moors (Reston). This did not please the Moors. They fought against Ferdinand and Isabella. The fighting between Christians and Moors lasted almost ten ...... middle of paper ...... e totally different. The natives could have been more tolerant towards the Europeans and lived together in unity. It could have changed many things such as religion, culture and other ways of doing things. Isabella and Ferdinand accomplished many things that changed the course of history. They expanded the Spanish empire by financing explorers. They also united several kingdoms to form the country that Spain is today, geographically and economically. However, Ferdinand and Isabella always believed that their greatest achievement was making Spain a predominantly Christian nation ("Isabella and Ferdinand"). At the end of their reign, King Ferdinand and Queen Isabella colonized a world that had never been discovered, promoted the spread of Christianity, and made Spain a nation of immense economic and industrial power in the world..