Claim: 2015 was the 1000th anniversary of the Magna Carta.
Evidence: Magna Carta Libertatum -LRB- Medieval Latin for `` the Great Charter of the Liberties '' -RRB- , commonly called Magna Carta -LRB- also Magna Charta ; '' -LRB- the -RRB- Great Charter '' -RRB- , is a charter agreed to by King John of England at Runnymede , near Windsor , on 15 June 1215.