The arrival of the Jewish people to the Iberian Peninsula is thought to date back to the times of the high peak of King Solomon’s glory in Israel and among the nations (1 Kings 10: 21-22). After the discovery of the New World and as a result of the Spanish Inquisition many sephardi converted to Christianity, took Spanish surnames ( i.e. Montes, Ríos, Valle, Fuentes, Arroyo, Martínez, de Jesús, Rivera, Ramírez, Rodríguez, García, Torres, Maldonado), and dispersed towards the Americas (during the Spanish colonization period), among other countries. This study intends to determine what level of Jewish ancestry exists among contemporary Puerto Ricans. (Please note that the previous clinical DNA testing at the UPR in San Juan is CLOSED).