Crypto-Judaism is the secret adherence to Judaism while publicly professing to be of another faith; practitioners are referred to as "crypto-Jews" (origin from Greek kryptos – κρυπτός, 'hidden'). The term is especially applied historically to Spanish Jews who outwardly professed Catholicism, also known as Conversos, Marranos, or the Anusim. The phenomenon is especially associated with Renaissance Spain, following the Massacre of 1391 and the expulsion of the Jews in 1492. Officially, Jews who converted in Spain during the 14th and 15th centuries were known as Cristianos Nuevos (New Christians), but were commonly called conversos (converts [to Christianity]). Spain and Portugal passed legislation restricting their rights in the mother countries of Spain and Portugal and their Spanish and Portuguese colonies in the Americas. Although only Cristianos Viejos (Old Christians) who could prove limpieza de sangre (cleanliness of blood) descent from Christian Iberian European ancestry only, without tainting of any Jewish ancestry or Muslim Berber/Arab ancestry, were allowed to officially migrate to the New World Spanish colonies, many Jewish-origin Christian conversos nevertheless ventured directly to the Spanish colonies on forged limpieza de sangre documents, or they entered the Spanish colonies via Brazil. The entry requirements to the Portuguese colony of Brazil were more lax and also less rigorously enforced. Despite the dangers of the Inquisition in Spain and its franchises in the Americas, many conversos continued to secretly and discreetly practice Jewish rituals in the home, such as the Festival of Santa Esterica, a disguised version of Purim to celebrate the Jewish Queen Esther with a fictional “Catholic” Saint Esterica. After the Alhambra decree of 1492, numerous conversos, also called Xueta (or Chueta) in the Balearic Islands ruled by Spain, publicly professed Roman Catholicism but privately adhered to Judaism, even through the Spanish Inquisition. They are among the most widely known and documented crypto-Jews.