Fig. 1From: Ancestral Peruvian ethnic fermented beverage “Chicha” based on purple corn (Zea mays L.): unraveling the health-relevant functional benefitsThe political division of the empire of the Incas (thirteenth to sixteenth century) (with red lines) shows 4 main regions or “suyos”: Chinchaysuyu (northwest), Cuntisuyu (southwest), Antisuyu (northeast), and Collasuyu (southeast). Black arrows and squares show the geographical locations of important pre-Inca civilizations with Chicha-making traditions: Chavin [4], Marcavalle [5], Churajon [6], and Tiwanaku [7]. Map adapted from Merriman [8]Back to article page