 The Spanish conquistadors heard about this name from the Incas, and the few survivors of Diego de Almagro's first Spanish expedition south from Peru in 1535–36 called themselves the "men of Chilli".Ultimately, Almagro is credited with the universalization of the name "Chile", after naming the Mapocho valley as such.The older spelling "Chili" was in use in English until at least 1900 before switching to "Chile".