The oldest universities, colleges, vocational schools and the first modern public education system in Asia were created during the Spanish colonial period. The earliest schools were founded by Spanish Catholic missionaries. By the time Spain was replaced by the United States as the colonial power, Filipinos were among the most educated subjects in all of Asia. Of the many educational institutions established during the colonial era, only a few remain extant today, such as the University of Santo Tomas (1611), Colegio de San Juan de Letran (1620), Real Colegio de Santa Potenciana (1590), Universidad de San Ignacio (1590), Colegio de San Ildefonso (1595), Santa Isabel College Manila (1632), and the Universidad de San Felipe de Austria (1640), among others.
