Wikipedia:
Carta is Latin and Italian for "paper" and is Spanish and Portuguese "Letter". In English it takes the form "card" or "chart". That said, most of its uses pertain to its meaning as "paper", "chart", or "map", for example in Magna Carta.
Other uses
Center for Academic Research and Training in Anthropogeny (CARTA), University of California, San DiegoCharleston Area Regional Transportation AuthorityChattanooga Area Regional Transportation AuthorityCarta, an Israeli publishing and mapping companyCarta, a post-rock band from San Francisco, CaliforniaCarta d'Armenia, a 500 year old paper incense produced in Florence