Dublin Castle (Caisleán Bhaile Átha Cliath) off Dame Street, Dublin, Ireland, was until 1922 the fortified seat of British rule in Ireland, and is now a major Irish government complex. For over 800 years Dublin Castle has been at the heart of Irish history.From the founding of the first Celtic settlement in the 1st century A.D. to every Presidential inaugration since the foundation of the State, the site has stood witness to some of the most pivotal events in the country’s history.