Last month marked 800 years since King John was forced by a group of barons at Runnymede to accept some constraints on his authority and affix his seal to the document that became known as Magna Carta.
In the eight centuries since, Magna Carta has been invoked as a symbol of liberty and justice by champions of human rights such as Nelson Mandela, Mahatma Gandhi and Martin Luther King. It has been used to establish pillars of the criminal justice system, such as trials by jury and the writ of habeas corpus - that prevents people being held in custody indefinitely without being brought before a court to determine whether their detention is lawful.
Last month our MPs celebrated the anniversary of the Great Charter, venerating it for "paving the road to modern democracy" and forming "the foundation stone of the freedoms and liberties we now enjoy in New Zealand." Bold claims. This Magna Carta thing must be important.
And indeed it is. But not just because it is very old. We should remember, as we celebrate this significant anniversary, that the importance of Magna Carta is not to be found in a single moment of time in 1215. In fact, quite a lot of the original document relates quite specifically to the time it was signed and deals with concerns that are peculiar to medieval England. That does not mean that Magna Carta is not relevant to us in New Zealand in the 21st Century, but simply that, as a former Dean of Harvard Law School once noted, "Magna Carta is not primarily significant for what it was but rather for what it was made to be". The importance of Magna Carta comes from the life that we give to its principles.
Some core principles of Magna Carta remain very important to our law and constitution. What is probably the most famous clause of Magna Carta is still on the statute books in New Zealand. It states: