Tourism in the Republic of Ireland on were built by them. As Dublin Airport is located just outside the city, most international visitors to Ireland begin their stay here. Among the main attractions in Dublin are Dublin Castle, the seat of British rule in Ireland until 1922, Phoenix Park, one of the largest inner city parks in the world, The General Post Office, one of Ireland's most famous buildings due to the 1916 Easter rising, Kilmainham Gaol, a former prison turned museum that held and executed the rebels of the 1916 Rising and Trinity College, where the Book of Kells and the Book of Durrow are
History of Ireland (1801–1923) with militant republicanism, particularly Irish-American republicanism. It was from the former Irish Volunteer ranks that the Irish Republican Brotherhood organized an armed rebellion in 1916. Because of divisions among the Volunteer leadership, only a small part of their numbers was mobilized. Indeed, Eoin MacNeill, the Volunteer commander, countermanded orders to units to begin the insurrection. Nevertheless, at Easter 1916, a small band of 1500 republican rebels (Volunteers and Irish Citizen Army) staged a rebellion, called the "Easter Rising" in Dublin, under Padraig Pearse and James Connolly. The Rising was put down after a week's fighting. Initially their acts were widely