"Horizontal sehlves first used for placing books"- this first happened at the Merton Library at Oxford in the 1370's. The Library was set up for loaning books predating the printing era in the Middle Ages. Books were kept in a chest before this. Dr. Julia Walworth, the Libraian of the Merton Library talks to the BBC's Christian Kriticos. The library will celebrate the 750th anniversary of its existence.Dining clubs at princeton immitate Merton Library. It is one of the oldest still functioning libraries in Europe and the oldest in the English speaking world.