Nelson's Pillar was a large granite column capped by a statue of Horatio Nelson, built in the centre of what was then Sackville Street in Dublin, Ireland. Completed in 1809 when Ireland was part of the United Kingdom, it survived until March 1966, when it was severely damaged by explosives planted by Irish republicans. Its remnants were later destroyed by the Irish Army.
The decision to build the monument was taken by Dublin Corporation in the euphoria following Nelson's victory at the Battle of Trafalgar in 1805. The original design by William Wilkins was greatly modified by Francis Johnston, on grounds of cost. The statue was sculpted by Thomas Kirk. From its opening on 29 October 1809 the Pillar was a popular tourist attraction, but provoked aesthetic and political controversy from the outset. A prominent city centre monument honouring an Englishman rankled as Irish nationalist sentiment grew, and throughout the 19th century there were calls for it to be removed, or replaced with a memorial to an Irish hero.
It remained in the city as most of Ireland became the Irish Free State in 1922, and the Republic of Ireland in 1949.