which has given rise to legal disputes. During their various collaborations, it is not clear who between the two conceived of some stylistic solutions in the arrangements that later on characterised both artists' style. In the 20th century, between 1904 and 1914, Antonio Gaudí brought about a reform that lasted ten years. It has three parallel chapels at the apse and many lateral chapels between the buttresses. Tradition has it that the theme was selected intentionally because of the great number of converted Jews who lived in Palma. Before the Andes were formed, the western margin of South America had already been the site of several orogenies. The central Andes belong to the so-called 'Andes de tipo andino' which were formed by the subduction of the oceanic crust.