The earliest archaeological evidence of wine production yet found has been at sites in Georgia (c. 6000 BC) and Iran (c. 5000 BC).The altered consciousness produced by wine has been considered religious since its origin. The Greeks worshiped Dionysus and Bacchus and the Romans carried on his cult. Consumption of ritual wine was part of Jewish practice since Biblical times and, as part of the eucharist commemorating Jesus's Last Supper, became even more essential to the Christian Church.