Crowds on the Rock of Cashel in 1929
Now thanks to a painstaking repatriation and digitalisation process by the Irish Film Institute an amazing two minute movie of the day has been released online.
The movie shows thousands of people crowded on to the Rock for the ceremony to commemorate the centenary of Catholic Emancipation.
Count John McCormack, a famous Irish tenor can be seen performing to the enormous crowd during the Mass.
With the help of funding from the Department of Culture, Heritage and the Gaeltacht, the IFI brought home carefully selected newsreels from the British Pathé and British Film Institute archives to create digital copies from the original film prints.
Many of the newsreels had not been viewed since their original broadcast in cinemas 100 years ago.
Nearly all film footage of pivotal events like the Easter Rising and the War of Independence was held abroad, with much of it not available to the public, prior to this.
The Irish Independence Film collection contains 155 films in five categories - Ireland prior to the Easter Rising, The 1916 Rising, The Irish War of Independence, The Irish Civil War, Ireland 1924-1930. The full collection can be found here: The Irish Independence Film Collection