De revolutionibus orbium coelestium
The Antonio Vivencio del Rosario UST Heritage Library keeps some 30,000 volumes published between 1492 and 1900. Among the collections are "La Guerra Judaica" (1492) by Josephus Flavius, "De revolutionibus orbium coelestium" (1543) of Nicolaus Copernicus, and the first book ever printed in the Philippines, "Doctrina Christiana" (1593).