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Published online 1 March 2006 | Nature | doi:10.1038/news060227-7
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Early Andean maize unearthed
Ancient finding suggests Peruvians could have been making tortillas 4,000 years ago.
Archaeologists have found the oldest evidence so far of agriculture in the Andes. The discovery shows that ancient Peruvians were growing and eating maize some 4,000 years ago - more than a millennium earlier than previous records had suggested.
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