Babylonian clay tablet, the oldest world map (6th century BC), from Sippar in southern Iraq. Known by scholars as the "Mappa Mundi" it is the only known world map dating from the Neo-Babylonian period. It shows the world as round and surrounded by a circular sea, and placing Babylon at the center. Mesopotamia British museum - المتحف البريطاني
The working library of Hereford Cathedral in England originated in the eleventh century. The chained library at the cathedral, containing 229 medieval manuscripts, remains the largest historic chained library in the world, with all its rods, chains and locks intact. It has been preserved in the form in which it was maintained from 1611 to 1841.