Name of Mexico Caribbean and the Philippines. Since New Spain was not actually a state or a contiguous part of land, in modern times it would have been a jurisdiction under the command of the authorities in modern Mexico City. Under the Spaniards, Mexico was both the name of the capital and its sphere of influence, most of which exists as Greater Mexico City and the State of Mexico. Some parts of Puebla, Morelos and Hidalgo were also part of Spanish-era Mexico. In 1821, the continental part of New Spain seceded from Spain during the Trienio Liberal, in which Agustin de Iturbide marched
Name of Argentina "equivalent and valid" denominations. Then on October 8, 1860, President Santiago Derqui decreed the official name to be República Argentina. In common speech, the country is referred to as "la Argentina" (the Argentine) in Spanish, bypassing the noun in any of the above expressions ("the Argentine [land]", "the Argentine [Republic]", etc.). Name of Argentina The name of Argentina (a Spanish adjective meaning "silvery"), traditionally called the Argentine in English, is ultimately derived from the Latin "argentum" "silver" and the feminine of the adjectival suffix -īnus, the Latin "argentum" has its origin from the ancient Greek-Hellenic word "argyro(s)", άργυρο(ς) meaning silver.