Andrew Carnegie became extremely rich as the founder of a steel company that bore his name. He then gave away 90% of his fortune as a philanthropist. Part of his legacy was helping to fund 2,500 public libraries. The Carnegie Library on Avenida Juan Ponce de León was established in 1916. It absorbed the collection of books from the Island Library. This Neoclassical building was created by architect Ramón Carbia. The library closed in 1965. Three decades passed before the structure was extensively remodeled and reopened.