The annona was the imperial service responsible for overseeing the supply of key food items to the city of Rome and the army. Primarily concerned with grain, the service became increasingly involved in the provisioning of other commodities, such as olive oil, wine, and pork. By the end of the 3rd century, the annona was a complex machinery involving private and public agents in different parts of the empire, overseen by the prefect of the annona, based in Rome. The operation of this system is documented in literary texts, administrative documents such as papyri and writing tablets, inscriptions, and a rich archaeological record, in Rome and in the provinces. However, the precise working of the system and the degree to which it was controlled by the Roman state remain open to debate. The annona was also involved in the supply of the army, especially with regards to provisions brought from distant producing centres. During the later empire, the system became more centralised, being overseen by the praetorian prefecture.
Dimitri van Limbergen
Grape cultivation reached Greece towards the end of the 3rd millennium