query: What was María Estela Martínez Cartas de Perón greatest accomplishment?
passage: Isabel Martínez de Perón
María Estela Martínez Cartas de Perón (born 4 February 1931), better known as Isabel Martínez de Perón (Spanish pronunciation:[isaˈβel maɾˈtines]) or Isabel Perón, served as the 42nd President of Argentina from 1974 to 1976. She was the third wife of President Juan Perón. During her husband's third term as president from 1973 to 1974, Isabel served as both vice president and First Lady. Following her husband's death in office in 1974, Isabel served as president of Argentina from 1 July 1974 to 24 March 1976, when the military took over the government and placed her under house arrest for five years, before exiling her to Spain in 1981. She holds the distinction of having been the first woman to have had the title of "President", as opposed to a queen or prime minister.
passage: Eva Perón Foundation
On 8 July 1948 the "María Eva Duarte de Perón Foundation" was established. Its name was later changed to the simpler "Eva Perón Foundation". Its opening charter declared that it was to remain "‘in the sole hands of its founder… who will… possess the widest powers afforded by the State and the Constitution.’" The Foundation's aims were to provide monetary assistance and scholarships to gifted children from impoverished backgrounds, build homes, schools, hospitals and orphanages in underprivileged areas and "‘to contribute or collaborate by any possible means to the creation of works tending to satisfy the basic needs for better life of the less privileged classes.’" Initially work began with nothing more than garden parties for single mothers or Evita’s personal trips to the ghettoes of Buenos Aires to hand out aid parcels.