million before retiring a multi-millionaire at the age of 40. He remained chairman of the new public company Guinness, and was its largest shareholder, retaining about 35% of the stock. The amount can be compared to the 1886 GDP of the UK, which was £116 million. By 1914 the brewery's output had doubled again from the 1886 level, to 1,877,000 hogsheads. In 1902 he commissioned the Guinness Storehouse, that is today one of Ireland's main tourist attractions. Public housing Like his father and brother, Lord Iveagh was a generous philanthropist and contributed almost £1 million to slum clearance and housing projects, among other causes. In London this was the 'Guinness Trust', founded in 1890, that manages "over 66,000 homes" in 2020. Most of his aesthetic and philanthropic legacy to Dublin is still intact. The Dublin branch of the Guinness Trust became the Iveagh Trust in 1903, by a private Act of Parliament, which funded the largest area of urban renewal in Edwardian Dublin, and still provides over 10% of the social housing in central Dublin. In 1908 he gave the large back garden of his house at 80 Stephens Green in central Dublin, known as the "Iveagh Gardens", to the new University College Dublin, which is now a public park. Previously he had bought and cleared some slums on the north side of St Patrick's Cathedral and in 1901 he created the public gardens known as "St. Patrick's Park". In nearby Francis Street he built the Iveagh Market to enable street traders to sell produce out of the rain. Iveagh was portrayed as "Guinness Trust" in a "Spy" cartoon in July 1891. Medical and scientific research Iveagh also donated £250,000 to the Lister Institute in 1898, the first medical research charity in the United Kingdom (to be modelled on the Pasteur Institute, studying infectious diseases). In 1908, he co-funded the Radium Institute in London. He also sponsored new physics and botany buildings in Trinity College Dublin in 1903, and part-funded the students' residence at Trinity Hall, Dartry, in 1908. Iveagh helped finance the British Antarctic Expedition (1907–09) and Mount Iveagh, a mountain in the Supporters Range in Antarctica, is named for him. Art collector Interested in fine art all his life, from the 1870s Edward Cecil amassed a distinguished collection of Old Master paintings, antique furniture and historic textiles. In the late 1880s he was a client of Joe Duveen