Hajji Firuz Tepe is an archaeological site located in West Azarbaijan province in north-western Iran. The site was excavated between 1958 and 1968 by archaeologists from the University of Pennsylvania Museum of Archaeology and Anthropology. The excavations revealed a Neolithic village that was occupied in the second half of the sixth millennium BC where some of the oldest archaeological evidence of grape-based wine was discovered in the form of organic residue in a pottery jar.[2]