The four surviving copies of Magna Carta will be brought together for the first time in 2015 to celebrate the 800th birthday of the document that laid the foundation of Britain's common law and civil liberties.
Magna Carta, meaning Great Charter, was agreed at Runnymede, Surrey in 1215.
According to the BBC, there are four surviving copies of Magna Cart, two copies belong to the British Library, one copy is owned by Lincoln Cathedral and one by Salisbury Cathedral.
All three organisations will be involved in the event, which will be held at the British Library in London.
The British Library said it would be an 'once-in-a-lifetime opportunity for researchers and the public to see the documents side-by-side'.
According to the report, the library said the unification of the documents would allow them to be studied much more closely, particularly faded or obscured parts of the text.