Gramatica de la lengua castellana

The Royal Spanish Academy (Spanish: Real Academia Española, generally abbreviated as RAE) is Spain's official royal institution with a mission to ensure the stability of the Spanish language. It is based in Madrid, Spain, but is affiliated with national language academies in 22 other hispanophone nations through the Association of Academies of the Spanish Language. The RAE's emblem is a fiery crucible, and its motto is "Limpia, fija y da esplendor" ("Cleans, sets, and gives splendor"). The RAE dedicates itself to language planning by applying linguistic prescription aimed at promoting linguistic unity within and between various territories, to ensure a common standard. The proposed language guidelines are shown in a number of works. Source: [Royal Spanish Academy]( on Wikipedia.