News Items from UNC Greensboro

Donna Nash holds a map of excavation site in Peru and inset photo shows vessel from the dig.

Over beer with colleagues one night in 1997, UNCG Archaeology Professor Donna Nash agreed to take part in an excavation to explore the ancient Peruvian Wari Empire.  At the time she had no idea how important the simple activity of communing over beer was to bonding people and celebrating alliances in antiquity.

Nearly 20 years later, Nash and the team of archaeologists from five other universities have proof that communing over beverages was as essential to the fabric of the Wari society 1,000 years ago as it is to society today.

The Wari civilization, the earliest Peruvian empire, existed from 600 to 1,000 A.D., prior to the better-known Inca Empire (1350 to 1532 A.D.).  The Wari Empire once controlled 800 miles of the rugged Andean sierra.  In the seventh century they expanded far to the south and established a colony with several settlements 350 miles from the capital city.  On this tenuous frontier the Wari built a spectacular citadel on a towering mesa called Cerro Baul in southern Peru.   At the sacred location the archaeologists discovered the ruins of a massive brewery.

“What really amazes us is the size of the facility,” said Nash. “Based on the size of the vessels we’ve calculated they were able to make 1,800 liters (nearly 500 gallons) of beer in a single batch.”

“The other fascinating thing about the excavation site is that it’s on a mesa roughly 400 meters (1,324 feet) tall, a one-hour hike above any water in the area,” said Nash. “So they had to carry water up to the top of the mesa to make all this beer.”

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Sidebar: Want to know how Wari Beer tastes?

Excavation at the Wari brewery uncovered vast remnants of corn mash and molle berries, the primary ingredients of the beer.  After a lot of experimentation Nash and the team believes they’ve found the recipe for the beer produced more than 1,000 years ago.

The Field Museum of Chicago has partnered with craft-brewery to create a version of this ancient recipe.  Made using ingredients indigenous to Perú, the beer, WARI Chicha de Molle, is a light and delicate, pink-colored beer.



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Because of the time and effort required to make the fragrant combination of molle (moi-yey) berries – red peppercorns – and purple corn, the team surmises that the beer was an essential part of rituals to celebrate peace treaties and major political decisions. The other element that supports this deduction is that in the high, arid environment, the beer would only last for five days.

Apparently beer was serious business for the Wari.  Evidence Nash and the other archaeologists have found in a nearby cemetery leads them to believe sharing beer and communing with neighbors was essential to peace and prosperity.

For three centuries the Wari Empire bordered, and actually overlapped with the Tiwanaku, a powerful state with its capital on the shores of Lake Titicaca (now Bolivia).   Despite the possibility of territorial conflict, excavations have found that none of the 4,000 people buried in the cemetery suffered violent deaths.  Regardless of the encroachment into the Tiwanaku, it seems that the empires honored treaties and lived together peacefully, a somewhat surprising fact during a time of imperial expansion.  The beer may have contributed to this.

In addition to the archaeological research Nash and the team have done, the site has served many of her students through experiential learning. Since 2011 Nash has sponsored a total of 66 UNCG undergrads, grads and alumni who have supported the team’s work.

Other researchers on the team that has lead excavation of the site include Dr. Michael Moseley and Dr. Susan de France, both from the University of Florida, and Dr. Ryan Williams and Dr. Sofia Chacaltana, both from the Chicago Field Museum.


Story by Joe Gallehugh, contributor
Photography by Martin Kane, University Relations

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