Magna Carta
Thirteen original copies of the Carta were made and distributed.  Only four survive today.  The four copies are in The British Library, The Bodleian Library, Lincoln Castle and Salisbury Cathedral.  The Magna Carta was sent out again in 1220 by Henry III.  In 2009 UNESCO recognized it in its Memory of the World register.  The British Library brought all four copies together in February 2015, so that scholars could examine them side by side.