It is a letter, contract, agreement or written instrument with a permission or obligation, in most cases of official value, in addition to freight, of the direct shipment of both these messages and people and goods with privileges or privileges of passage, although today it is more a name for the transport contracted for private use, from point to point. It has an antecedent in the Latin chartula ("letter, short missive") which was a way of calling a bureaucratic document, often a note sent privately.
