Angaria

Angaria or Angareia,

a word borrowed from the Persians, signifying a system of posting by relays of horses, which was used among that people, and which, according to Xenophon, was established by Cyrus. The term was adopted by the Romans under the empire to signify compulsory service in forwarding the messages of the state. The Roman angaria, also called angariarum exhibitio or praestatio, included the maintenance and supply, not only of horses, but of ships and messengers, in forwarding both letters and burdens ; it is defined as a personate munus ; and there was no ground of exemption from it allowed, except by the favour of the emperor.