RVA-S-001432-0013 De Universo, first encyclopedia from the Middle Ages (between 842 and 847), written by Rabanus Maurus (c.780-856), German theologian and poet. Life inside a monastery, illustration of the 11th century. Archives from the Monte Cassino abbey. Credit: Roger-Viollet/Alinari WARNING: Permission must be required for non editorial use. Please contact Alinari Archives Collection: Roger-Viollet/Alinari Technical info Image sizes (pixel): 2054 X 2626 Image sizes (cm at 300 dpi): 17 X 22 Image sizes (MB): 3.53 Color space: RGB