Both Chicha and Chang are revered in the respective mountains of the Andes and the Himalayas. Many Nepalese, Tibetan, Chinese and other Asian cultures brew an indigenous beer from rice, millet, barley and corn (though corn was introduced to the world from the Americas).
Fifteen years ago the American Homebrewers Association’s Spring 1994 issue of Zymurgy magazine featured a story called Adventures in Chicha and Chang: Indigenous Beers of the East and West. This excellent article was thoroughly researched by Washington, DC area homebrewers Wendy Aronson and Bill Ridgely who traveled to both Peru and Tibet and accessed historical research available in Washington DC to research their contemporary and historical findings.
Here are some excerpts about chang beer from their article.
There is Chicha in the Andes. There is Chang in the Himalayas. These are beer styles indigenous and unique to cultures far remote from the typical beer roads most beer enthusiasts travel. There value remains as a reminder of the local nature of the communities we all live in and the uniqueness of local beers made by local breweries.
East meets West. North meets South. The saga of beer summits is a centuries old tradition and did not begin on the Whitehouse lawn.