On December 6th 1921 a document was signed that would shape Ireland for at least a century.
Throughout October, November and early December of 1921, tense negotiations on the future of the island took place in London after years of conflict.
The Irish team, led by Arthur Griffith and Michael Collins, were untrained and badly prepared. They lacked clear instructions or guidance and had no agreed counter-proposals prepared. They were not even a united team.
They also faced some serious British political talent, including the prime minister Lloyd George and future prime minister Winston Churchill.
In the early hours of the 6th of December 1921, the talks reached a dramatic climax at Number 10 Downing Street.
With the British under increasing pressure to get a deal done, an ultimatum was issued: sign or face war again.
The Anglo-Irish Treaty was signed. Its aim was to bring the curtain down on the war in Ireland and while it did mark the end of the War of Independence, it sparked another conflict almost immediately – the Civil War.
It also set the scene for the partition of Ireland with the devastating consequences that was to have half a century on from the signing of the Treaty.
Countless books, plays and even a Hollywood film have been made about the Treaty but what is it legacy and why is it an important story to tell?
Playwright Colin Murphy, historian Micheal O Fathartaigh, author Gretchen Friemann and Irish Times journalist Ronan McGreevy talk to In The News about the Treaty, the negotiations and the impact the document has had on Irish history.