Iron manufacture was the main industry of Gijón from the last years of the 19th century until the last decades of the 20th. Uninsa was created in 1971, and it merged with Ensidesa. In the last years of the century was converted in Aceralia, and integrated in Arcelor, along with the Luxembourg-based Arbed and the French company Usinor.The last decades of the century brought an industrial crisis affecting mainly iron manufacture and local shipbuilding. This brought new terrain for the creation of new beaches, parks and neighborhoods. It was also created a campus of the University of Oviedo.