The Alhambra Decree, issued in 1492 by the Catholic Monarchs of Spain, Ferdinand II of Aragon and Isabella I of Castile, mandated the expulsion of all Jews from Spain. This decree followed the completion of the Reconquista, which aimed to unify Spain under Christian rule. Jews were given a choice to convert to Christianity or leave the country, leading to significant migration and loss of cultural heritage. The decree had profound effects on the Jewish community, resulting in the displacement of thousands. Many Jews sought refuge in other countries, such as the Ottoman Empire and North Africa, while others converted to Christianity, often facing suspicion and persecution.