April 4th is the feast day of St. Isidore of Seville. St. Isidore was 7th century a scholar, bishop, and theologian. Known as the “last scholar of the ancient world,” he compiled the Etymologiae, an early encyclopedia. A key figure in preserving classical knowledge, he worked to unify Visigothic Spain under Catholicism. St. Isidore (c.1655)…