Trinity College Dublin

The College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin, branded by the board as Trinity College, the University of Dublin, and officially incorporated as Trinity College Dublin (TCD) (Irish: Coláiste na Tríonóide, Baile Átha Cliath), is the sole constituent college of the University of Dublin in Ireland. Founded in 1592 through a royal charter issued by Queen Elizabeth I, it is one of the extant seven ancient universities of Great Britain and Ireland. As Ireland's oldest university in continuous operation, Trinity contributed to Irish literature during the Victorian and Georgian eras and played a notable role in the recognition of Dublin as a UNESCO City of Literature.

Trinity was established to consolidate the rule of the Tudor monarchy in Ireland, with Provost Adam Loftus christening it after Trinity College, Cambridge. Built on the site of the former Priory of All Hallows demolished by King Henry VIII, it was the Protestant university of the Ascendancy ruling elite for over two centuries, and was therefore associated with social elitism for most of its history. Trinity has three faculties comprising 25 schools, and affiliated institutions include the Royal Irish Academy of Music, the Lir Academy, and the Irish School of Ecumenics. It is a member of LERU and the Coimbra Group. Trinity College Dublin is one of the two sister colleges of both Oriel College, Oxford, and St John's College, Cambridge, and through mutual incorporation, the three universities have retained an academic partnership (Oxon, Cantab and Dubl) since 1636.

The college contains several landmarks such as the Campanile, the GMB, and The Rubrics, as well as the 18th century Long Room. Its legal deposit library serves both Ireland and the United Kingdom, and has housed the Book of Kells since 1661, the Brian Boru harp since 1782, and a copy of the Proclamation of the Irish Republic since 1916. A major destination in Ireland's tourism, the college receives over two million visitors annually, and has been used as a location in movies and novels. Trinity also houses the world's oldest student society, The Hist, which was founded in 1770.

Notable alumni of Trinity include writers Oscar Wilde, Jonathan Swift, Samuel Beckett, Bram Stoker, John Millington Synge, Sheridan Le Fanu, Oliver Goldsmith, and William Congreve; political leaders Éamon de Valera, Lord Carson, and Lord Mayo; philosophers George Berkeley and Edmund Burke; and recipients of the Nobel Prize and Booker Prize. Trinity alumni invented the binaural stethoscope, steam turbine, and hypodermic needle; pioneered seismology, leprosy cure, radiotherapy, and linear algebra; performed the first artificial nuclear transmutation; and coined the term electron. The university is also associated with four Presidents and 14 Chief Justices of Ireland, five Victoria Cross and six Copley Medal recipients, and four of the best-selling novelists of all time.