After the conquest during the Age Of Exploration, religious reforms focused on improved education for the clergy and stricter enforcement of Christian doctrine in the population at large.
In 1492, the King and Queen issued an edict of expulsion that ordered all Jews to leave Spain. Massive amounts of Jewish-owned property were confiscated by the Crown. In 1502, the Muslims were expelled. Ferdinand and Isabella also established the Spanish Inquisition whose task was to investigate conversos (Jews who had converted to Catholicism) and moriscos (Muslims who had done the same) to ensure the orthodoxy of those who converted from Judaism and Islam to Christianity. . Tomás de Torquemada, a Dominican monk who was Isabella’s personal priest, served as the first Grand Inquisitor.
The Alhambra (Granada, Spain), one of the spectacular tourist spots
“In the same month in which their Majesties [Ferdinand and Isabella] issued the edict that all Jews should be driven out of the kingdom and its territories, in the same month they gave me the order to undertake with sufficient men my expedition of discovery to the Indies.” So begins Christopher Columbus’s diary. The expulsion that Columbus refers to was very cataclysmic. On March 30, they issued the expulsion decree, the order to take effect in precisely four months. On July 30 of 1491, the entire Jewish community, some 200,000 people, were expelled from Spain. The Spanish Jews who ended up in Turkey, North Africa, Italy, and elsewhere throughout Europe and the Arab world, were known as Sephardim — Sefarad being the Hebrew name for Spain.
Following the annexation, The city of Granada, which had been the last center of Muslim power in the Iberian Peninsula, lost its political importance and even much of its economic importance, and entered a long period of decline.