The Queen will today tour Dublin's Croke Park – the home of Gaelic football and the site of a British massacre of Irish civilians.
The visit, which comes on day two of the monarch's historic trip to the Republic, marks another milestone of reconciliation.
It was at Croke Park that British soldiers fatally shot 14 people during a match in 1920, apparently in revenge for the deaths of 14 of their fellow servicemen the day before.
The atrocity was the first to become known as Bloody Sunday.
Yesterday when the Queen arrived in the Irish capital, she laid a wreath at the Garden of Remembrance, which honours all those who died in Ireland’s fight for independence in the early part of the 20th century.
Croke Park is the home of Ireland's Gaelic Athletic Association (GAA), which has pledged to give the Queen a warm greeting when she arrives.
British Prime Minister David Cameron will also join the Queen for part of her trip, after holding talks with Irish prime minister Enda Kenny.
They and the Duke of Edinburgh will later attend a state dinner at Dublin Castle hosted by President Mary McAleese in honour of the royal couple.
The monarch will give her only speech of her four-day state visit during the banquet.
During the day the Republic's First World War dead will be honoured by the Queen when she visits the Irish National War Memorial to lay a wreath.
The popular tourist attraction of the Guinness Storehouse is also on the cards, where the royal couple will watch the "perfect pint" being poured by a master brewer.
It is not known whether the Queen, whose favourite tipple is gin and Dubonnet served with two ice cubes and a slice of lemon, will have a taste of the black stuff.
Irish police are braced for further disruption after the Queen's arrival was marred by protests in the capital and 21 people were arrested on public order offences.